diff --git a/builder/oracle/oci/config.go b/builder/oracle/oci/config.go
index d83fa6c15..014b9d207 100644
--- a/builder/oracle/oci/config.go
+++ b/builder/oracle/oci/config.go
@@ -63,7 +63,8 @@ type Config struct {
 	SubnetID string `mapstructure:"subnet_ocid"`
 
 	// Tagging
-	Tags map[string]string `mapstructure:"tags"`
+	Tags        map[string]string                 `mapstructure:"tags"`
+	DefinedTags map[string]map[string]interface{} `mapstructure:"defined_tags"`
 
 	ctx interpolate.Context
 }
diff --git a/builder/oracle/oci/config_test.go b/builder/oracle/oci/config_test.go
index a5b67d384..7084df61a 100644
--- a/builder/oracle/oci/config_test.go
+++ b/builder/oracle/oci/config_test.go
@@ -32,6 +32,9 @@ func testConfig(accessConfFile *os.File) map[string]interface{} {
 		"metadata": map[string]string{
 			"key": "value",
 		},
+		"defined_tags": map[string]map[string]interface{}{
+			"namespace": {"key": "value"},
+		},
 	}
 }
 
diff --git a/builder/oracle/oci/driver_oci.go b/builder/oracle/oci/driver_oci.go
index db0f2fbc1..3f02aaab0 100644
--- a/builder/oracle/oci/driver_oci.go
+++ b/builder/oracle/oci/driver_oci.go
@@ -81,6 +81,7 @@ func (d *driverOCI) CreateImage(ctx context.Context, id string) (core.Image, err
 		InstanceId:    &id,
 		DisplayName:   &d.cfg.ImageName,
 		FreeformTags:  d.cfg.Tags,
+		DefinedTags:   d.cfg.DefinedTags,
 	}})
 
 	if err != nil {
diff --git a/website/source/docs/builders/oracle-oci.html.md b/website/source/docs/builders/oracle-oci.html.md
index dad452dcc..c931167d4 100644
--- a/website/source/docs/builders/oracle-oci.html.md
+++ b/website/source/docs/builders/oracle-oci.html.md
@@ -161,6 +161,19 @@ builder.
   "tag2": "value2"
 ```
 
+-   `defined_tags` (map of map of strings) - Add one or more defined tags for a given namespace to the resulting
+    custom image. See [the Oracle
+    docs](https://docs.cloud.oracle.com/iaas/Content/Identity/Concepts/taggingoverview.htm)
+    for more details. Example:
+
+``` {.yaml}
+"tags":
+  "namespace": {
+    "tag1": "value1",
+    "tag2": "value2"
+  }
+```
+
 ## Basic Example
 
 Here is a basic example. Note that account specific configuration has been