Matthew Loveland Dennis (February 11, 1914 – June 21, 2002) was an American singer, pianist, band leader, arranger, and writer of music for popular songs.

His mother was a violinist and his father a singer, and the family was in vaudeville, so he was exposed to music early.

Dennis wrote prolifically, with 14 of his songs recorded by the Dorsey band in one year alone, including "Everything Happens to Me", an early hit for Frank Sinatra.

Dennis made six albums, which were out of print for many years; however, his 1953 song "Angel Eyes" (with lyricist Earl Brent) has become a frequently recorded jazz standard; less frequently recorded, but notably by Miles Davis and Sonny Rollins is "Will You Still Be Mine".

Pianist Dave Brubeck and his quartet recorded an entire album of Dennis's compositions, released as Angel Eyes in 1965.