Unorthodox may refer to:

• Unorthodox (band), an American doom metal band
• Unorthodox (Edge of Sanity album), 1992
• Unorthodox (Snow Tha Product album), 2011
• "Unorthodox" (Joey Badass song), 2013
• "Unorthodox" (Wretch 32 song), 2011

• Unorthodox (miniseries), a 2020 Netflix miniseries loosely based on Deborah Feldman's memoir (see below)
• "Unorthodox" (Law & Order: Special Victims Unit), a television episode

• Unorthodox (podcast), a Jewish podcast hosted by Mark Oppenheimer, Stephanie Butnick, and Liel Leibovitz
• Unorthodox: The Scandalous Rejection of My Hasidic Roots, a 2012 memoir by Deborah Feldman
• Unorthodox Engineers, the subject of a series of science fiction short stories by Colin Kapp
• Left-arm unorthodox spin, a style of bowling in the sport of cricket
• Unorthodox chess piece, a chess piece not used in conventional chess, but used in certain chess variants

• Heterodoxy, any opinions or doctrines at variance with an official or orthodox position
• Orthodox (disambiguation)