Walk-in can refer to:
Walk In, 1997 Hong Kong film directed by Herman Yau The Walk-In (TV series), a British TV crime drama series "The Walk In" (The Americans), an episode of the US TV series The Americans Walk-in agent Walk-in (concept) A large refrigerator or freezer installed in a industrial kitchen that allows a human being to enter Walk-In (comics), a 2006 comic book series Walk-in closet Walk-in clinic