Spencer Brown may refer to:
Sportspeople Spencer Brown (offensive tackle) (born 1998), American football offensive tackle Spencer Brown (running back) (born 1998), American football running back Spencer Brown (fighter) (born 1997), Scottish fighter Spencer Brown (rugby union, born 1921) (1921–c. 1973), rugby union player who represented Australia Spencer Brown (rugby union, born 1973), English rugby union player
Others Spencer Brown (comedian), English comedian, actor and writer Spencer Brown (musician) (born 1994), American musician Spencer Kellogg Brown (1842–1863), American Civil War spy Spencer Wharton Brown (1918–1977), American professor and cyto-geneticist
See also G. Spencer-Brown (1923–2016), English polymath best known as the author of Laws of Form