Takei (written: 武井) is a Japanese surname. Notable people with the surname include:
Emi Takei (born 1993), Japanese actress, fashion model, and singer
George Takei (born 1937), American actor
Hideyuki Takei (born 1970), Japanese pole vaulter
Hiroyuki Takei (born 1972), Japanese manga writer
Koji Takei (born 1990), Japanese water polo player
Takuya Takei (born 1986), Japanese football player
Yasuo Takei (1930–2006), the founder and former chairman of Takefuji
Fictional characters:
Junko Takei, a fictional character from Strike Witches