Knock offs are products similar to higher-end items but sold at a much lower price. This type of product may be a: Generic brand Counterfeit consumer good Dupe (product) Mockbuster Video game clone
Knock off may also refer to: Knock Off (film), a 1998 film starring Jean-Claude Van Damme "Knock Off" (song), a 2022 song by Jess Moskaluke "Knockoff", a 2023 song by Poppy from the album Zig Knockoffs (statistics), a variable selection framework in statistics
See also Ripoff, a grossly unfavorable financial transaction Spinoff (media), a derivative of a creative work