Nancy Brown may refer to:
Nancy J. Brown, American physician-scientist Nancy Elizabeth Brown (born 1952), US Navy admiral Nancy Brown (actress) (1909–2003), Australian actress, singer and songwriter Nancy Brown (columnist) (1870–1948), American advice columnist Nancy Brown (Kansas politician) (1942–2020), American state legislator from Kansas Nancy Marie Brown (born 1959), American author Nancy Brown (musical), Broadway musical inspired by the song by Clifton Crawford Nancy Brown (song), a popular song by Clifton Crawford which was performed by Marie Cahill in the 1902 musical The Wild Rose
See also Nancy Browne (1913–1996), New Zealand cricketer