diff --git a/CHANGELOG.md b/CHANGELOG.md
index af1d92b..422c17e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -10,6 +10,7 @@ This document outlines major changes between releases.
 - Don't count pool error on client abort (#35)
 
 ### Added
+- Return `X-Owner-Id` in `head-bucket` response (#79)
 - Return container name in `head-bucket` response (TrueCloudLab#18)
 - Billing metrics (TrueCloudLab#5)
 - Multiple configs support (TrueCloudLab#21)
diff --git a/api/handler/head.go b/api/handler/head.go
index 8c7ef69..0ac519e 100644
--- a/api/handler/head.go
+++ b/api/handler/head.go
@@ -122,6 +122,7 @@ func (h *handler) HeadBucketHandler(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 
+	w.Header().Set(api.OwnerID, bktInfo.Owner.EncodeToString())
 	w.Header().Set(api.ContainerID, bktInfo.CID.EncodeToString())
 	w.Header().Set(api.AmzBucketRegion, bktInfo.LocationConstraint)
 
diff --git a/api/headers.go b/api/headers.go
index db9fc2a..42280ad 100644
--- a/api/headers.go
+++ b/api/headers.go
@@ -62,6 +62,7 @@ const (
 	AmzServerSideEncryptionCustomerKey       = "x-amz-server-side-encryption-customer-key"
 	AmzServerSideEncryptionCustomerKeyMD5    = "x-amz-server-side-encryption-customer-key-MD5"
 
+	OwnerID       = "X-Owner-Id"
 	ContainerID   = "X-Container-Id"
 	ContainerName = "X-Container-Name"
 	ContainerZone = "X-Container-Zone"