Tanaka is the fourth most common Japanese surname.

Tanaka may also refer to:

• Tanaka, a district of Nagano Prefecture, Japan
  • Tanaka Station, a railway station in Tanaka district, Nagano Prefecture, Japan
• Tanaka Business School, part of Imperial College, London
• Uonuma-Tanaka Station, a railway station in Uonuma, Niigata Prefecture, Japan
• Echigo-Tanaka Station, a railway station in Tsunan, Nakauonuma District, Niigata Prefecture, Japan
• Kashiwa-Tanaka Station, a train station in Kashiwa, Chiba Prefecture, Japan
• Tanaka Power Equipment, makers of small internal combustion engines and associated machinery
• Tanaka Seisakusho (Tanaka Engineering Works), which became Toshiba, a Japanese conglomerate
• Tanaka Memorial, an alleged Japanese war planning document
• Tanaka, a Japanese village merged with Kashiwa, Chiba
• Tanaka Memorial Biological Station on the island of Miyake, Japan
• Tanaka (relief) contours technique

Given name

Tanaka is a Shona word meaning "we are good" which is used as a given name in Zimbabwe:

• Tanaka Chinyahara Zimbabwean professional footballer