Machida (written: 町田 lit. "town ricefield") is a Japanese surname. Notable people with the surname include:
- Akira Machida (町田 顯, born 1936), Japanese judge
- Emi Machida (町田 恵美), Japanese toji or master sake brewer
- Machida Chūji (町田 忠治, 1863–1946), Japanese politician
- Kō Machida (町田 康, born 1962), Japanese writer and musician
- Lyoto Machida (町田 龍太, born 1978), Japanese-Brazilian mixed martial artist
- Rui Machida (町田瑠唯, born 1993), Japanese basketball player
- Sonoko Machida (町田 そのこ, born 1980), Japanese novelist
- Tadamichi Machida (町田 忠道, born 1981), Japanese footballer
- Tatsuki Machida (町田 樹, born 1990), Japanese figure skater
- Touko Machida (待田堂子), Japanese screenwriter
- Yamato Machida (町田 也真人, born 1989), Japanese footballer
- Yoshio Machida (町田 良夫, born 1967), Japanese musician and artist