Case Study House #22, aka Stahl House, is a modernist styled house in the Hollywood Hills section of Los Angeles, California that was designed by Pierre Koenig. Photographic and anecdotal evidence suggests that the architect's client, Buck Stahl, may have provided an inspiration for the overall structure.

Built in 1959 and part of the Case Study Houses program, the house is considered an iconic representation of modern architecture in Los Angeles during the 20th century. It was made famous by a photograph by Julius Shulman showing two women leisurely sitting at a corner of the house with a panoramic view of the city through the floor-to-ceiling glass walls at night. The house was used in numerous fashion shoots, ad campaigns and numerous films. Films include Playing By Heart (where it was used as John Stewart's house), Why Do Fools Fall In Love, Galaxy Quest, The Final Power, Thirteenth Floor, The Marrying Man, Prescription Murder, Corina Corina, Nurse Betty, Where the Truth Lies, and Smog; also in television shows Adam 12, Night Stalker, and Emergency.

In 1999, it was declared a Los Angeles Historic-Cultural Monument. In 2007, the American Institute of Architects listed the Stahl House as one of the top 150 structures on its "America's Favorite Architecture" list, one of only 11 in Southern California, and the only privately owned home on the list.

The house was included in a list of all-time top 10 houses in Los Angeles in a Los Angeles Times survey of experts in December 2008.

The house is privately owned.