Star Trek memorabilia are objects related to the popular science-fiction entertainment franchise "Star Trek." Memorabilia can include autographed items, collectibles, toys, models, posters, costumes and other articles related to "Star Trek" and its characters.

"Star Trek" began with an original television series created by Gene Roddenberry that debuted in 1966. Since then, the franchise has produced four spin-off television series and many movies. "Star Trek" has had a cult following for decades and has generated parodies and fan fiction. Fans call themselves "Trekkies" or "Trekkers" and attend conventions that feature vendors, character appearances, costume parades and opportunities for autographs and photographs.