"Pink Triangle" is a song by American rock band Weezer. As the third single from the band's second album Pinkerton, it was released to radio on May 20, 1997.

The song describes a man who falls in love with a woman with whom he imagines he could settle down and be married. However, he soon discovers that the object of his affection is a lesbian who possibly thinks that the man himself is gay. The song is based on a real person that Weezer frontman Rivers Cuomo encountered while a student at Harvard, who he fantasized a life with until he saw a pink triangle—a gay pride symbol—on her backpack. (According to Cuomo, a year and a half after the album was released he discovered that the woman was actually not a lesbian and had just been showing support for the gay community.)

A promo single was sent to radio stations that also contained an acoustic version of the song recorded at Shorecrest High School in Seattle, Washington. The song received limited airplay and never charted and thus was deemed not to warrant a video. It is the band's least successful single thus far.

In 2004, the band released its first DVD Video Capture Device, which features a video of the Shorecrest performance as well as a video cut by Weezer.com webmaster and longtime friend of the band Karl Koch that features footage shot by Jennifer Wilson, wife of Weezer drummer Patrick Wilson.

Radio Station Promo CD

Live acoustic track is the same as on "The Good Life" OZ EP

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