Reptilian

Reptilian may refer to:
 * Reptiles, reptile-like creatures, or their qualities

Arts and entertainment

 * Reptilian (album), by Norwegian metal group Keep of Kalessin
 * Reptilian (film), a 1999 South Korean kaiju remake
 * Reptilians (Starfucker album)
 * "Reptilia" (song), by The Strokes
 * Reptiloid (film), a 2013 Croatian short film

Other uses

 * Reptilian complex, a brain theory
 * Reptilian conspiracy theory, a fringe theory about shape-shifting aliens
 * Reptilian humanoid, anthropomorphic reptiles in folklore
 * List of reptilian humanoids