"Mona (I Need You Baby)" is a song written by Ellas McDaniel (Bo Diddley) that appeared as the B-side to his 1957 single "Hey!

According to Diddley's obituary in The New York Times, "Mona" was a song of praise he wrote for a 45-year-old exotic dancer who worked at the Flame Show Bar in Detroit.

The song also became the template for the Crickets's "Not Fade Away".

[1] In April 1990, Australian actor and musician Craig McLachlan released a version with his band, Check 1–2, as the second single from their 1990 debut album, Craig McLachlan & Check 1-2.

In Australia, it was the highest-selling single by a native artist in 1990.