157 may refer to:
157 (number), the natural number following 156 and preceding 158 AD 157, a year 157 BC, a year 157 (New Jersey bus), United States 157 (Welsh) Regiment RLC UFC 157, a mixed martial arts event held by the Ultimate Fighting Championship ONE 157, a combat sport event produced by ONE Championship Radical 157, one of the 20 Kangxi radicals composed of 7 strokes meaning "foot" NGC 157, an intermediate spiral galaxy in the constellation of Cetus 157 series, a DC electric multiple unit train type Tatra 157, the prototype version of the Tatra 815