Tomioka

Tomioka may refer to:
 * Tomioka, Fukushima, a town in Fukushima Prefecture
 * Tomioka Station, a railway station
 * Tomioka, Gunma, a city in Gunma Prefecture
 * Tomioka silk mill
 * Tomioka Castle
 * Eisaku Tomioka (富岡 英作) (born 1964), professional shogi player
 * Kihei Tomioka (富岡 喜平) (1932–2007), Japanese cyclist
 * Giyū Tomioka (冨岡 義勇), fictional character from the manga Demon Slayer: Kimetsu no Yaiba