diff --git a/README.md b/README.md
index c5e3907bf..8cd853701 100644
--- a/README.md
+++ b/README.md
@@ -64,6 +64,7 @@ Rclone *("rsync for cloud storage")* is a command line program to sync files and
   * StackPath [:page_facing_up:](https://rclone.org/s3/#stackpath)
   * SugarSync [:page_facing_up:](https://rclone.org/sugarsync/)
   * Tardigrade [:page_facing_up:](https://rclone.org/tardigrade/)
+  * Tencent Cloud Object Storage (COS) [:page_facing_up:](https://rclone.org/s3/#tencent-cos)
   * Wasabi [:page_facing_up:](https://rclone.org/s3/#wasabi)
   * WebDAV [:page_facing_up:](https://rclone.org/webdav/)
   * Yandex Disk [:page_facing_up:](https://rclone.org/yandex/)
diff --git a/backend/s3/s3.go b/backend/s3/s3.go
index 64f09b267..b65f198cc 100644
--- a/backend/s3/s3.go
+++ b/backend/s3/s3.go
@@ -58,7 +58,7 @@ import (
 func init() {
 	fs.Register(&fs.RegInfo{
 		Name:        "s3",
-		Description: "Amazon S3 Compliant Storage Provider (AWS, Alibaba, Ceph, Digital Ocean, Dreamhost, IBM COS, Minio, etc)",
+		Description: "Amazon S3 Compliant Storage Provider (AWS, Alibaba, Ceph, Digital Ocean, Dreamhost, IBM COS, Minio, Tencent COS, etc)",
 		NewFs:       NewFs,
 		CommandHelp: commandHelp,
 		Options: []fs.Option{{
@@ -94,6 +94,9 @@ func init() {
 			}, {
 				Value: "StackPath",
 				Help:  "StackPath Object Storage",
+			}, {
+				Value: "TencentCOS",
+				Help:  "Tencent Cloud Object Storage (COS)",
 			}, {
 				Value: "Wasabi",
 				Help:  "Wasabi Object Storage",
@@ -185,7 +188,7 @@ func init() {
 		}, {
 			Name:     "region",
 			Help:     "Region to connect to.\nLeave blank if you are using an S3 clone and you don't have a region.",
-			Provider: "!AWS,Alibaba,Scaleway",
+			Provider: "!AWS,Alibaba,Scaleway,TencentCOS",
 			Examples: []fs.OptionExample{{
 				Value: "",
 				Help:  "Use this if unsure. Will use v4 signatures and an empty region.",
@@ -476,10 +479,73 @@ func init() {
 				Value: "s3.eu-central-1.stackpathstorage.com",
 				Help:  "EU Endpoint",
 			}},
+		}, {
+			// cos endpoints: https://intl.cloud.tencent.com/document/product/436/6224
+			Name:     "endpoint",
+			Help:     "Endpoint for Tencent COS API.",
+			Provider: "TencentCOS",
+			Examples: []fs.OptionExample{{
+				Value: "cos.ap-beijing.myqcloud.com",
+				Help:  "Beijing Region.",
+			}, {
+				Value: "cos.ap-nanjing.myqcloud.com",
+				Help:  "Nanjing Region.",
+			}, {
+				Value: "cos.ap-shanghai.myqcloud.com",
+				Help:  "Shanghai Region.",
+			}, {
+				Value: "cos.ap-guangzhou.myqcloud.com",
+				Help:  "Guangzhou Region.",
+			}, {
+				Value: "cos.ap-nanjing.myqcloud.com",
+				Help:  "Nanjing Region.",
+			}, {
+				Value: "cos.ap-chengdu.myqcloud.com",
+				Help:  "Chengdu Region.",
+			}, {
+				Value: "cos.ap-chongqing.myqcloud.com",
+				Help:  "Chongqing Region.",
+			}, {
+				Value: "cos.ap-hongkong.myqcloud.com",
+				Help:  "Hong Kong (China) Region.",
+			}, {
+				Value: "cos.ap-singapore.myqcloud.com",
+				Help:  "Singapore Region.",
+			}, {
+				Value: "cos.ap-mumbai.myqcloud.com",
+				Help:  "Mumbai Region.",
+			}, {
+				Value: "cos.ap-seoul.myqcloud.com",
+				Help:  "Seoul Region.",
+			}, {
+				Value: "cos.ap-bangkok.myqcloud.com",
+				Help:  "Bangkok Region.",
+			}, {
+				Value: "cos.ap-tokyo.myqcloud.com",
+				Help:  "Tokyo Region.",
+			}, {
+				Value: "cos.na-siliconvalley.myqcloud.com",
+				Help:  "Silicon Valley Region.",
+			}, {
+				Value: "cos.na-ashburn.myqcloud.com",
+				Help:  "Virginia Region.",
+			}, {
+				Value: "cos.na-toronto.myqcloud.com",
+				Help:  "Toronto Region.",
+			}, {
+				Value: "cos.eu-frankfurt.myqcloud.com",
+				Help:  "Frankfurt Region.",
+			}, {
+				Value: "cos.eu-moscow.myqcloud.com",
+				Help:  "Moscow Region.",
+			}, {
+				Value: "cos.accelerate.myqcloud.com",
+				Help:  "Use Tencent COS Accelerate Endpoint.",
+			}},
 		}, {
 			Name:     "endpoint",
 			Help:     "Endpoint for S3 API.\nRequired when using an S3 clone.",
-			Provider: "!AWS,IBMCOS,Alibaba,Scaleway,StackPath",
+			Provider: "!AWS,IBMCOS,TencentCOS,Alibaba,Scaleway,StackPath",
 			Examples: []fs.OptionExample{{
 				Value:    "objects-us-east-1.dream.io",
 				Help:     "Dream Objects endpoint",
@@ -666,7 +732,7 @@ func init() {
 		}, {
 			Name:     "location_constraint",
 			Help:     "Location constraint - must be set to match the Region.\nLeave blank if not sure. Used when creating buckets only.",
-			Provider: "!AWS,IBMCOS,Alibaba,Scaleway,StackPath",
+			Provider: "!AWS,IBMCOS,Alibaba,Scaleway,StackPath,TencentCOS",
 		}, {
 			Name: "acl",
 			Help: `Canned ACL used when creating buckets and storing or copying objects.
@@ -678,9 +744,13 @@ For more info visit https://docs.aws.amazon.com/AmazonS3/latest/dev/acl-overview
 Note that this ACL is applied when server side copying objects as S3
 doesn't copy the ACL from the source but rather writes a fresh one.`,
 			Examples: []fs.OptionExample{{
+				Value:    "default",
+				Help:     "Owner gets Full_CONTROL. No one else has access rights (default).",
+				Provider: "TencentCOS",
+			}, {
 				Value:    "private",
 				Help:     "Owner gets FULL_CONTROL. No one else has access rights (default).",
-				Provider: "!IBMCOS",
+				Provider: "!IBMCOS,TencentCOS",
 			}, {
 				Value:    "public-read",
 				Help:     "Owner gets FULL_CONTROL. The AllUsers group gets READ access.",
@@ -842,6 +912,24 @@ isn't set then "acl" is used instead.`,
 				Value: "STANDARD_IA",
 				Help:  "Infrequent access storage mode.",
 			}},
+		}, {
+			// Mapping from here: https://intl.cloud.tencent.com/document/product/436/30925
+			Name:     "storage_class",
+			Help:     "The storage class to use when storing new objects in Tencent COS.",
+			Provider: "TencentCOS",
+			Examples: []fs.OptionExample{{
+				Value: "",
+				Help:  "Default",
+			}, {
+				Value: "STANDARD",
+				Help:  "Standard storage class",
+			}, {
+				Value: "ARCHIVE",
+				Help:  "Archive storage mode.",
+			}, {
+				Value: "STANDARD_IA",
+				Help:  "Infrequent access storage mode.",
+			}},
 		}, {
 			// Mapping from here: https://www.scaleway.com/en/docs/object-storage-glacier/#-Scaleway-Storage-Classes
 			Name:     "storage_class",
@@ -975,7 +1063,7 @@ if false then rclone will use virtual path style. See [the AWS S3
 docs](https://docs.aws.amazon.com/AmazonS3/latest/dev/UsingBucket.html#access-bucket-intro)
 for more info.
 
-Some providers (eg AWS, Aliyun OSS or Netease COS) require this set to
+Some providers (eg AWS, Aliyun OSS, Netease COS or Tencent COS) require this set to
 false - rclone will do this automatically based on the provider
 setting.`,
 			Default:  true,
@@ -1305,7 +1393,7 @@ func s3Connection(opt *Options) (*s3.S3, *session.Session, error) {
 	if opt.Region == "" {
 		opt.Region = "us-east-1"
 	}
-	if opt.Provider == "AWS" || opt.Provider == "Alibaba" || opt.Provider == "Netease" || opt.Provider == "Scaleway" || opt.UseAccelerateEndpoint {
+	if opt.Provider == "AWS" || opt.Provider == "Alibaba" || opt.Provider == "Netease" || opt.Provider == "Scaleway" || opt.Provider == "TencentCOS" || opt.UseAccelerateEndpoint {
 		opt.ForcePathStyle = false
 	}
 	if opt.Provider == "Scaleway" && opt.MaxUploadParts > 1000 {
@@ -1587,7 +1675,7 @@ func (f *Fs) list(ctx context.Context, bucket, directory, prefix string, addBuck
 	//
 	// So we enable only on providers we know supports it properly, all others can retry when a
 	// XML Syntax error is detected.
-	var urlEncodeListings = (f.opt.Provider == "AWS" || f.opt.Provider == "Wasabi" || f.opt.Provider == "Alibaba" || f.opt.Provider == "Minio")
+	var urlEncodeListings = (f.opt.Provider == "AWS" || f.opt.Provider == "Wasabi" || f.opt.Provider == "Alibaba" || f.opt.Provider == "Minio" || f.opt.Provider == "TencentCOS")
 	for {
 		// FIXME need to implement ALL loop
 		req := s3.ListObjectsInput{
diff --git a/docs/content/_index.md b/docs/content/_index.md
index 51af844d4..d24a3fd57 100644
--- a/docs/content/_index.md
+++ b/docs/content/_index.md
@@ -148,6 +148,7 @@ WebDAV or S3, that work out of the box.)
 {{< provider name="StackPath" home="https://www.stackpath.com/products/object-storage/" config="/s3/#stackpath" >}}
 {{< provider name="SugarSync" home="https://sugarsync.com/" config="/sugarsync/" >}}
 {{< provider name="Tardigrade" home="https://tardigrade.io/" config="/tardigrade/" >}}
+{{< provider name="Tencent Cloud Object Storage (COS)" home="https://intl.cloud.tencent.com/product/cos" config="/s3/#tencent-cos" >}}
 {{< provider name="Wasabi" home="https://wasabi.com/" config="/s3/#wasabi" >}}
 {{< provider name="WebDAV" home="https://en.wikipedia.org/wiki/WebDAV" config="/webdav/" >}}
 {{< provider name="Yandex Disk" home="https://disk.yandex.com/" config="/yandex/" >}}
diff --git a/docs/content/s3.md b/docs/content/s3.md
index 7c3d6cf6d..877093d41 100644
--- a/docs/content/s3.md
+++ b/docs/content/s3.md
@@ -18,6 +18,7 @@ The S3 backend can be used with a number of different providers:
 {{< provider name="Minio" home="https://www.minio.io/" config="/s3/#minio" >}}
 {{< provider name="Scaleway" home="https://www.scaleway.com/en/object-storage/" config="/s3/#scaleway" >}}
 {{< provider name="StackPath" home="https://www.stackpath.com/products/object-storage/" config="/s3/#stackpath" >}}
+{{< provider name="Tencent Cloud Object Storage (COS)" home="https://intl.cloud.tencent.com/product/cos" config="/s3/#tencent-cos" >}}
 {{< provider name="Wasabi" home="https://wasabi.com/" config="/s3/#wasabi" end="true" >}}
 {{< /provider_list >}}
 
@@ -488,6 +489,8 @@ Choose your S3 provider.
         - StackPath Object Storage
     - "Wasabi"
         - Wasabi Object Storage
+    - "TencentCOS"
+        - Tencent Cloud Object Storage (COS)
     - "Other"
         - Any other S3 compatible provider
 
@@ -1122,7 +1125,7 @@ The storage class to use when storing new objects in S3.
 
 ### Advanced Options
 
-Here are the advanced options specific to s3 (Amazon S3 Compliant Storage Provider (AWS, Alibaba, Ceph, Digital Ocean, Dreamhost, IBM COS, Minio, etc)).
+Here are the advanced options specific to s3 (Amazon S3 Compliant Storage Provider (AWS, Alibaba, Ceph, Digital Ocean, Dreamhost, IBM COS, Minio, Tencent COS, etc)).
 
 #### --s3-bucket-acl
 
@@ -2212,6 +2215,138 @@ d) Delete this remote
 y/e/d> y
 ```
 
+### Tencent COS {#tencent-cos}
+
+[Tencent Cloud Object Storage (COS)](https://intl.cloud.tencent.com/product/cos) is a distributed storage service offered by Tencent Cloud for unstructured data. It is secure, stable, massive, convenient, low-delay and low-cost.
+
+To configure access to Tencent COS, follow the steps below:
+
+1. Run `rclone config` and select `n` for a new remote.
+
+```
+rclone config
+No remotes found - make a new one
+n) New remote
+s) Set configuration password
+q) Quit config
+n/s/q> n
+```
+
+2. Give the name of the configuration. For example, name it 'cos'.
+
+```
+name> cos
+```
+
+3. Select `s3` storage.
+
+```
+Choose a number from below, or type in your own value
+1 / 1Fichier
+   \ "fichier"
+ 2 / Alias for an existing remote
+   \ "alias"
+ 3 / Amazon Drive
+   \ "amazon cloud drive"
+ 4 / Amazon S3 Compliant Storage Provider (AWS, Alibaba, Ceph, Digital Ocean, Dreamhost, IBM COS, Minio, Tencent COS, etc)
+   \ "s3"
+[snip]
+Storage> s3
+```
+
+4. Select `TencentCOS` provider.
+```
+Choose a number from below, or type in your own value
+1 / Amazon Web Services (AWS) S3
+   \ "AWS"
+[snip]
+11 / Tencent Cloud Object Storage (COS)
+   \ "TencentCOS"
+[snip]
+provider> TencentCOS
+```
+
+5. Enter your SecretId and SecretKey of Tencent Cloud.
+
+```
+Get AWS credentials from runtime (environment variables or EC2/ECS meta data if no env vars).
+Only applies if access_key_id and secret_access_key is blank.
+Enter a boolean value (true or false). Press Enter for the default ("false").
+Choose a number from below, or type in your own value
+ 1 / Enter AWS credentials in the next step
+   \ "false"
+ 2 / Get AWS credentials from the environment (env vars or IAM)
+   \ "true"
+env_auth> 1
+AWS Access Key ID.
+Leave blank for anonymous access or runtime credentials.
+Enter a string value. Press Enter for the default ("").
+access_key_id> AKIDxxxxxxxxxx
+AWS Secret Access Key (password)
+Leave blank for anonymous access or runtime credentials.
+Enter a string value. Press Enter for the default ("").
+secret_access_key> xxxxxxxxxxx
+```
+
+6. Select endpoint for Tencent COS. This is the standard endpoint for different region.
+
+```
+ 1 / Beijing Region.
+   \ "cos.ap-beijing.myqcloud.com"
+ 2 / Nanjing Region.
+   \ "cos.ap-nanjing.myqcloud.com"
+ 3 / Shanghai Region.
+   \ "cos.ap-shanghai.myqcloud.com"
+ 4 / Guangzhou Region.
+   \ "cos.ap-guangzhou.myqcloud.com"
+[snip]
+endpoint> 4
+```
+
+7. Choose acl and storage class.
+
+```
+Note that this ACL is applied when server side copying objects as S3
+doesn't copy the ACL from the source but rather writes a fresh one.
+Enter a string value. Press Enter for the default ("").
+Choose a number from below, or type in your own value
+ 1 / Owner gets Full_CONTROL. No one else has access rights (default).
+   \ "default"
+[snip]
+acl> 1
+The storage class to use when storing new objects in Tencent COS.
+Enter a string value. Press Enter for the default ("").
+Choose a number from below, or type in your own value
+ 1 / Default
+   \ ""
+[snip]
+storage_class> 1
+Edit advanced config? (y/n)
+y) Yes
+n) No (default)
+y/n> n
+Remote config
+--------------------
+[cos]
+type = s3
+provider = TencentCOS
+env_auth = false
+access_key_id = xxx
+secret_access_key = xxx
+endpoint = cos.ap-guangzhou.myqcloud.com
+acl = default
+--------------------
+y) Yes this is OK (default)
+e) Edit this remote
+d) Delete this remote
+y/e/d> y
+Current remotes:
+
+Name                 Type
+====                 ====
+cos                  s3
+```
+
 ### Netease NOS  ###
 
 For Netease NOS configure as per the configurator `rclone config`