"Damien" was adapted for the cable channel by former Walking Dead writer Glen Mazzara, who broke the cancellation news on Twitter.
Mazzara wrote to fans: "This hurts to say but #Damien will not be getting a second season. Thank you from all of us to our amazing fans.
"The #Damien fandom has been the absolute best. So sorry we won't be able to continue our story for you. I really loved making #Damien We all did. We just never got the numbers there. Gave is our best shot."