"Must Be Doin' Somethin' Right" is a song written by Marty Dodson and Patrick Jason Matthews and recorded by American country music singer Billy Currington.

It was released in May 2005 as the first single from Currington's 2005 album Doin' Somethin' Right.

The song is a love ballad, set in the key of A major, with a main chord pattern of F♯m-D-A on the verses.

Stephen Thomas Erlewine of Allmusic wrote that the song "gets a nicely mellow, relaxed Californian vibe".

Billboard Hot Country Singles & Tracks for the week of June 11, 2005, and peaked at No.