"She's In Love" is a song written by Keith Stegall and Dan Hill, and recorded by American country music artist Mark Wills.

The narrator notes all of the characteristics that show him that she truly has fallen in love and that it is not just something temporary; he then reflects that he wishes it were he.

A review in Billboard was positive, stating that Wills' "sensitive rendering of the lyric gives the song additional emotional impact".

[2] The music video was directed by Charley Randazzo and premiered in June 1999.

"She's in Love" debuted at #65 on Billboard's Hot Country Singles & Tracks for the week of June 19, 1999.