"I am delighted to get it done," Snodgrass told Leeds United's official website. "I had no worries because I had two years left and was happy here, but it's great to sign a new contract."
He added: "It's been great since I came down here last summer and I really love the club. From the fans to the back-room staff and the other players, it's a great place to be and hopefully I can repay the faith that's been shown in me."