"Stay (I Missed You)" is a song by Lisa Loeb, which became her breakthrough song in 1994. It was included on the Reality Bitessoundtrack, as well as her debut album, Tails.

"Stay" ultimately went on to become a number-one hit on the Hot 100 chart, earning her the distinction of being the only artist to top the U.S. chart before being signed to any record label. The song reached number six on the UK Singles Chart and even performed the song on Top of the Pops. It also peaked at number 14 on the New Zealand RIANZ Top 40.

"Stay" later placed 93rd on VH1's 100 Greatest Songs of the 90's.

Loeb was discovered by actor and friend Ethan Hawke, who lived in an apartment across the street from her in New York City. She met Hawke through mutual friends in the NYC theatre community. Loeb had been performing "Stay (I Missed You)" to positive response at her shows, and Hawke gave a tape of Loeb's song to director Ben Stiller during the making of the film Reality Bites. Stiller subsequently agreed to use the song in the film and on the film's soundtrack.

This song was just named "Stay" originally. But at the time it was getting popular, there were several popular songs with "Stay" in their title (such as the U2 song "Stay (Faraway, So Close!)"). Because of this, "(I Missed You)" was tacked on to the end to differentiate it from the others.

The music video was directed by Ethan Hawke, and features Loeb (wearing a black dress and her trademark horn-rimmed glasses) singing the lyrics while walking around in the empty New York City apartment in which she lived at the time. The video can be described as simple as there are no use of any visual or audio effects.

According to VH1 show Pop-Up Video, the video was filmed in just two separate takes.

"Stay" was covered in 2006 by Filipino singer Chris Cayzer for his self-titled debut album. In 2007, it was covered by pop-punk band New Found Glory for From the Screen to Your Stereo Part IIand featured Loeb on supporting vocals. Sarah Silverman performed a cover version of the song in an episode from the second season of The Sarah Silverman Program.