"That Girl's Been Spyin' on Me" is a song written by Tom Shapiro and Max T. Barnes, and recorded by American country music singer Billy Dean. It was released in June 1996 as the second single from his album It's What I Do. The song spent twenty weeks on the Hot Country Songs charts in 1996, peaking at number four.

Deborah Evans Price, of Billboard magazine reviewed the song favorably, saying that the "cloak-and-dagger spy intro gives way to tasty guitar, piano, and fiddle licks that percolate nicely." She goes on to say that the writers provide Dean with a "catchy melody and cute lyric, to which he adds a playful vocal delivery."

"That Girl's Been Spyin' on Me" debuted at number 72 on the U.S. Billboard Hot Country Singles & Tracks for the week of June 15, 1996.

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