"Baby Ain't That Fine" is a song written by Dallas Frazier that was recorded as a duet between American country artists Melba Montgomery and Gene Pitney. The song was also released as a single in 1965. "Baby Ain't That Fine" was recorded in October 1965 in Nashville, Tennessee, United States. The session was produced by Pappy Daily. It was the first recording session to take place between Montgomery and Pitney. The session included the The Nashville A-Team of musicians.