Redshirt, Red Shirt, or Redshirts may refer to:

• Red Shirts (film), a 1952 film about Anita Garibaldi by Franco Rossi
• Redshirt (stock character), originally derived from Star Trek, a stock character who dies soon after being introduced
• Redshirts (novel), a 2012 novel by John Scalzi
• "Redshirts" (song), a 2012 song by Jonathan Coulton
• Redshirt (video game), a 2013 video game by Mitu Khandaker

• Red Shirt Lake, a lake in Alaska
• Red Shirt, South Dakota, a Lakota village in South Dakota
• Red Shirt Table, a table mountain in South Dakota

• Khudai Khidmatgar or Red Shirts, a Pashtun movement against British rule in colonial India
• Redshirts (Italy), followers of guerrilla leader Giuseppe Garibaldi
• Red Shirts (Mexico), a Mexican anti-Catholic paramilitary organization of the 1930s
• Abahlali baseMjondolo or Red shirts, a South African shack-dwellers' movement
• The red shirts scandal, an Australian political scandal that involved the Victorian Labor Party
• Red Shirts (Taiwan) or Million Voices Against Corruption, President Chen Must Go
• Red Shirts (Thailand), a political movement in Thailand opposing the 2006 military coup
• Red Shirts (United States), a militant white supremacist group during and after the Reconstruction Era

• Red Shirt (Oglala) (1847–1925), chief of the Oglala Sioux tribe
• Delphine Red Shirt (born 1957), Oglala Lakota Sioux writer

• Redshirt (college sports), delaying a college athlete's participation to lengthen eligibility
• Red Shirt School of Photography, a trend pioneered by National Geographic photographers

• Redshirting (academic), the practice of postponing entrance into kindergarten
• Kuilix, Pend d'Oreilles tribal war leader
• Lalkurti (literal translation: Red Shirt), a locality in Rawalpindi cantonment in Pakistan