"Nobody in His Right Mind Would've Left Her" is a song written by Dean Dillon, and recorded by American country music singer George Strait. It was released in April 1986 as the first single from the album #7. The song was originally recorded by Dillon, whose version peaked at number 25 on Billboard's Hot Country Singles & Tracks chart in 1980.

The song tells the story of a guy that broke up with a girl. He was the one that told her he had to move on and now he’s the one crying over the loss.

Kevin John Coyne of Country Universe gave the song a B+ grade, calling it a "standard country weeper with a mouthful of a title." He goes on to say that Strait "is able to close the gap, which makes songs that would sound odd in another singer’s hands sound a bit surprising but still completely natural in Strait’s."

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