diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5ec0d1b19e9..6b61b3aa2c1 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -31,6 +31,7 @@
 - Add Bearer auth for Metrics API scaler ([#2028](https://github.com/kedacore/keda/pull/2028))
 - Anonymize the host in case of HTTP failure (RabbitMQ Scaler) ([#2041](https://github.com/kedacore/keda/pull/2041))
 - Escape `queueName` and `vhostName` in RabbitMQ Scaler before use them in query string (bug fix) ([#2055](https://github.com/kedacore/keda/pull/2055))
+- TriggerAuthentication/Vault: add support for Vault namespace (Vault Enterprise) ([#2085](https://github.com/kedacore/keda/pull/2085))
 
 ### Breaking Changes
 
diff --git a/api/v1alpha1/triggerauthentication_types.go b/api/v1alpha1/triggerauthentication_types.go
index 6dc4b695baf..f87fba7c2fa 100644
--- a/api/v1alpha1/triggerauthentication_types.go
+++ b/api/v1alpha1/triggerauthentication_types.go
@@ -120,6 +120,9 @@ type HashiCorpVault struct {
 	Authentication VaultAuthentication `json:"authentication"`
 	Secrets        []VaultSecret       `json:"secrets"`
 
+	// +optional
+	Namespace string `json:"namespace,omitempty"`
+
 	// +optional
 	Credential *Credential `json:"credential,omitempty"`
 
diff --git a/pkg/scaling/resolver/hashicorpvault_handler.go b/pkg/scaling/resolver/hashicorpvault_handler.go
index 6e950fffc61..62a22f1c131 100644
--- a/pkg/scaling/resolver/hashicorpvault_handler.go
+++ b/pkg/scaling/resolver/hashicorpvault_handler.go
@@ -28,6 +28,7 @@ func NewHashicorpVaultHandler(v *kedav1alpha1.HashiCorpVault) *HashicorpVaultHan
 // Initialize the Vault client
 func (vh *HashicorpVaultHandler) Initialize(logger logr.Logger) error {
 	config := vaultApi.DefaultConfig()
+
 	client, err := vaultApi.NewClient(config)
 	if err != nil {
 		return err
@@ -38,6 +39,10 @@ func (vh *HashicorpVaultHandler) Initialize(logger logr.Logger) error {
 		return err
 	}
 
+	if len(vh.vault.Namespace) > 0 {
+		client.SetNamespace(vh.vault.Namespace)
+	}
+
 	token, err := vh.token(client)
 	if err != nil {
 		return err