diff --git a/azurerm/internal/services/trafficmanager/resource_arm_traffic_manager_profile.go b/azurerm/internal/services/trafficmanager/resource_arm_traffic_manager_profile.go
index 05a7475d8907..435cccd98cee 100644
--- a/azurerm/internal/services/trafficmanager/resource_arm_traffic_manager_profile.go
+++ b/azurerm/internal/services/trafficmanager/resource_arm_traffic_manager_profile.go
@@ -106,6 +106,24 @@ func resourceArmTrafficManagerProfile() *schema.Resource {
 							},
 						},
 
+						"custom_header": {
+							Type:     schema.TypeList,
+							Optional: true,
+							Elem: &schema.Resource{
+								Schema: map[string]*schema.Schema{
+									"name": {
+										Type:         schema.TypeString,
+										Required:     true,
+										ValidateFunc: validation.StringIsNotEmpty,
+									},
+									"value": {
+										Type:     schema.TypeString,
+										Required: true,
+									},
+								},
+							},
+						},
+
 						"protocol": {
 							Type:     schema.TypeString,
 							Required: true,
@@ -287,8 +305,11 @@ func expandArmTrafficManagerMonitorConfig(d *schema.ResourceData) *trafficmanage
 	monitorSets := d.Get("monitor_config").([]interface{})
 	monitor := monitorSets[0].(map[string]interface{})
 
+	customHeaders := expandArmTrafficManagerCustomHeadersConfig(monitor["custom_header"].([]interface{}))
+
 	cfg := trafficmanager.MonitorConfig{
 		Protocol:                  trafficmanager.MonitorProtocol(monitor["protocol"].(string)),
+		CustomHeaders:             customHeaders,
 		Port:                      utils.Int64(int64(monitor["port"].(int))),
 		Path:                      utils.String(monitor["path"].(string)),
 		IntervalInSeconds:         utils.Int64(int64(monitor["interval_in_seconds"].(int))),
@@ -313,6 +334,45 @@ func expandArmTrafficManagerMonitorConfig(d *schema.ResourceData) *trafficmanage
 	return &cfg
 }
 
+func expandArmTrafficManagerCustomHeadersConfig(d []interface{}) *[]trafficmanager.MonitorConfigCustomHeadersItem {
+	if len(d) == 0 || d[0] == nil {
+		return nil
+	}
+
+	customHeaders := make([]trafficmanager.MonitorConfigCustomHeadersItem, len(d))
+
+	for i, v := range d {
+		ch := v.(map[string]interface{})
+		customHeaders[i] = trafficmanager.MonitorConfigCustomHeadersItem{
+			Name:  utils.String(ch["name"].(string)),
+			Value: utils.String(ch["value"].(string)),
+		}
+	}
+
+	return &customHeaders
+}
+
+func flattenArmTrafficManagerCustomHeadersConfig(input *[]trafficmanager.MonitorConfigCustomHeadersItem) []interface{} {
+	result := make([]interface{}, 0)
+	if input == nil {
+		return result
+	}
+
+	headers := *input
+	if len(headers) == 0 {
+		return result
+	}
+
+	for _, v := range headers {
+		header := make(map[string]string, 2)
+		header["name"] = *v.Name
+		header["value"] = *v.Value
+		result = append(result, header)
+	}
+
+	return result
+}
+
 func expandArmTrafficManagerDNSConfig(d *schema.ResourceData) *trafficmanager.DNSConfig {
 	dnsSets := d.Get("dns_config").([]interface{})
 	dns := dnsSets[0].(map[string]interface{})
@@ -340,6 +400,7 @@ func flattenAzureRMTrafficManagerProfileMonitorConfig(cfg *trafficmanager.Monito
 
 	result["protocol"] = string(cfg.Protocol)
 	result["port"] = int(*cfg.Port)
+	result["custom_header"] = flattenArmTrafficManagerCustomHeadersConfig(cfg.CustomHeaders)
 
 	if cfg.Path != nil {
 		result["path"] = *cfg.Path
diff --git a/azurerm/internal/services/trafficmanager/tests/resource_arm_traffic_manager_profile_test.go b/azurerm/internal/services/trafficmanager/tests/resource_arm_traffic_manager_profile_test.go
index 4df235b6aee0..aa0e6679d450 100644
--- a/azurerm/internal/services/trafficmanager/tests/resource_arm_traffic_manager_profile_test.go
+++ b/azurerm/internal/services/trafficmanager/tests/resource_arm_traffic_manager_profile_test.go
@@ -315,6 +315,11 @@ resource "azurerm_traffic_manager_profile" "test" {
       "301-303",
     ]
 
+    custom_header {
+      name  = "foo"
+      value = "bar"
+    }
+
     protocol = "tcp"
     port     = 777
 
@@ -357,6 +362,11 @@ resource "azurerm_traffic_manager_profile" "test" {
       "302-304",
     ]
 
+    custom_header {
+      name  = "foo2"
+      value = "bar2"
+    }
+
     protocol = "https"
     port     = 442
     path     = "/"
diff --git a/website/docs/r/traffic_manager_profile.html.markdown b/website/docs/r/traffic_manager_profile.html.markdown
index afa790a061f1..6e8e23d3fa3d 100644
--- a/website/docs/r/traffic_manager_profile.html.markdown
+++ b/website/docs/r/traffic_manager_profile.html.markdown
@@ -92,12 +92,20 @@ The `monitor_config` block supports:
 
 * `expected_status_code_ranges` - (Optional) A list of status code ranges in the format of `100-101`.
 
+* `custom_header` - (Optional) One or more `custom_header` blocks as defined below.
+
 * `interval_in_seconds` - (Optional) The interval used to check the endpoint health from a Traffic Manager probing agent. You can specify two values here: `30` (normal probing) and `10` (fast probing). The default value is `30`.
 
 * `timeout_in_seconds` - (Optional) The amount of time the Traffic Manager probing agent should wait before considering that check a failure when a health check probe is sent to the endpoint. If `interval_in_seconds` is set to `30`, then `timeout_in_seconds` can be between `5` and `10`. The default value is `10`. If `interval_in_seconds` is set to `10`, then valid values are between `5` and `9` and `timeout_in_seconds` is required.
 
 * `tolerated_number_of_failures` - (Optional) The number of failures a Traffic Manager probing agent tolerates before marking that endpoint as unhealthy. Valid values are between `0` and `9`. The default value is `3`
 
+A `custom_header` block supports the following:
+
+* `name` - (Required) The name of the custom header.
+
+* `value` - (Required) The value of custom header. Applicable for Http and Https protocol.
+
 ## Attributes Reference
 
 The following attributes are exported: