Matsunaga (written: ) is a Japanese surname. Notable people with the surname include: Daniel Matsunaga, Japanese-Brazilian model, actor and football player currently based in the Philippines Enzo Matsunaga, author Futoshi Matsunaga, Japanese serial killer Hikaru Matsunaga, Japanese legislator and finance minister Hisahide Matsunaga, daimyō of the Matsunaga clan in the Sengoku period Mari Matsunaga, founder of i-mode mobile service and Seiko Epson board director Masahiro Matsunaga, racing driver Masatoshi Matsunaga, Imperial Army Lieutenant General and Baron, Second Class Mitsuhiro Matsunaga, Japanese professional wrestler Sadaichi Matsunaga, Imperial Japanese Navy Vice Admiral , Japanese sport wrestler Spark Matsunaga, United States Senator from Hawaii , Japanese footballer Toh Matsunaga, Chairman of the 45th House of Representative Yoshisuke Matsunaga, Japanese mathematician of the 18th century , Japanese voice actress Fictional characters Mikage Matsunaga, a character from anime and manga series Miracle Girls Tomomi Matsunaga, a character from anime and manga series Miracle Girls Japanese-language surnames