Sue Ennis is a songwriter from Seattle, Washington. She co-wrote many songs with Ann Wilson and Nancy Wilson of the band Heart, including the Heart songs "Straight On", "Even It Up" and "Dog & Butterfly", and has been a member of the band The Lovemongers with the Wilsons and Frank Cox.
She has co-written music as part of other works: With John Barry and Ann and Nancy Wilson, Ennis co-wrote "The Best Man in the World" from the 1986 film The Golden Child. She has co-written songs with Hummie Mann, including "Shining Time" from the 2000 movie Thomas and the Magic Railroad.
She teaches classes on songwriting and music business at Shoreline Community College near Seattle, Washington and serves as Trustee of the Pacific Northwest Chapter of the Recording Academy. She has B.A. degrees in English and German from Willamette University and her M.A. in German Literature from the University of California, Berkeley.