Welcome to the Dollhouse is a 1995 American coming-of-age black comedy film written, produced, and directed by Todd Solondz. An independent film, it won the Grand Jury Prize at the 1996 Sundance Film Festival and launched the careers of Solondz, Heather Matarazzo and Brendan Sexton III. The story follows the unpopular middle schooler Dawn as she goes to extreme lengths trying to earn the respect of her vicious fellow students and her uninterested family. Dawn reappears in two of Solondz's other films, Palindromes (2004) and Wiener-Dog (2016), but those films have alternate timelines and Dawn encounters two different fates in those two films. Dawn's brother and father also appear in the former in addition to Life During Wartime (2009). The film's working title was Faggots and Retards.

Twelve-year-old Dawn Wiener is a shy and unpopular seventh-grader living in a middle-class suburban community in New Jersey. Her older brother Mark is a nerdy high school student who plays clarinet in a garage band and shuns girls in order to prepare for college. Her younger sister Missy is spoiled and manipulative; she pesters Dawn and dances around the house in a tutu. Her mother Marj is a shrewish woman who dotes on Missy and sides with her in disputes with Dawn. Her father Harv is a meek man who sides with Marj over Dawn. Her only friend is an effeminate sixth-grade boy named Ralphy, with whom she shares a dilapidated clubhouse in her backyard.

At school, Dawn is ridiculed and her locker is covered in graffiti. Her teacher unfairly gives her detention after one of her bullies, Brandon McCarthy, tries to copy her answers on a test. Later, Dawn gets in trouble again after accidentally hitting another teacher in the eye with a spitball in self-defense when Brandon and his friends bully her during an assembly.

Mark's classmate Steve Rodgers, a handsome and charismatic aspiring rock musician, agrees to join the band in exchange for Mark's help in school. Dawn pursues him romantically when they spend time together, though one of Steve's former girlfriends tells her that she has no chance of being with him.

After Dawn calls Brandon a "retard" during a confrontation, he threatens her with rape. His first attempt to assault her after school fails, but shortly afterward, he phones her, ordering her to meet him again the next day. When she complies, he takes her to a junkyard, where he has an earnest conversation with her and kisses her instead. At dinner that evening, when she refuses to tear down her clubhouse to make room for her parents' 20th anniversary party, Marj tells Mark and Missy to destroy it anyway, and gives them Dawn's share of dessert.

Dawn and Brandon spend time in her clubhouse, but she confesses to him her feelings for Steve, causing him to storm out. Ralphy, who was spying on them, tries to comfort Dawn, but she angrily rejects him when he insults Brandon, leaving her with no friends.

At the anniversary party, Dawn intends to proposition Steve, but gets cold feet and is rebuffed. Steve plays with Missy, who pushes Dawn into a kiddie pool. That evening, the family watches a videotape of the party, laughing when Dawn falls into the water. Later, Dawn smashes the tape and briefly brandishes her hammer over Missy as she sleeps.

A few days later, Brandon is arrested and expelled from school for suspected drug dealing. Meanwhile, Harv's car breaks down and Marj has to pick him up. She instructs Dawn to tell Missy to get a ride home with her ballet teacher, but she chooses not to after arguing with Missy, who is subsequently kidnapped.