"Jessie's Girl" is a Grammy Award-winning rock song written and performed by pop singer Rick Springfield. It was released on the album Working Class Dog. The song is about unrequited love, and centers on a young man in love with his best friend's girlfriend (see below for story behind the song).

Upon its release in 1981 the song became an instant hit, reaching #1 on the Billboard Hot 100 for two weeks, and later won Springfield a Grammy Award for Best Male Rock Vocal Performance. The song was at #1 when MTV launched on August 1, 1981.

The song was released in the United Kingdom in March 1984 and peaked at number 43 on the UK Singles Chart in April 1984.

Springfield was taking a stained glass class along with his friend Gary and Gary's girlfriend. He initially wanted to use the actual name of the friend he was singing about, but instead decided to go with a different name — "Jessie". He happened to see a girl in a softball jersey with the name "Jessie" on it and changed the name from Gary to Jessie, then recorded the song. Springfield says that he does not remember the name of the girlfriend, and believes that the real woman who inspired the song has no idea that she was "Jessie's Girl", telling Oprah Winfrey, "I was never really introduced to her. It was always just, like, panting from afar." Springfield told Songfacts that Oprah's people tried to find her, and they got as far back as finding out that Gary had died two years previously.

"Jessie's Girl" remains a staple of many Lite rock and Classic Hits FM radio stations. In 2006, it was named #20 on VH1's "100 Greatest Songs of the 80s".

The music video depicts Rick watching a young couple (presumably Jessie and his girlfriend) with envy for the girl's love. It opens with Jessie (Steve Antin) spray painting "Jessie's Girl" onto a brick wall, and then leaving with his girlfriend, as Rick watches and gives a monologue in the form of the song's first verse. Rick runs into the couple one more time on the sidewalk, and he just stares as they walk away from him. Later, he goes home and looks in the mirror and mourns over why Jessie's girlfriend doesn't like him, and angrily smashes the mirror after he sees an illusion of Jessie's girlfriend in the mirror.

It was featured in as a track on Guitar Hero: On Tourand as a downloadable song for Guitar Hero World Tour. The song was featured inside Guitar Hero in the 2009 film Couples Retreat.