Masaichi

Masaichi (written: 雅一, 正一, 政一 or 政市) is a masculine Japanese given name. Notable people with the name include:


 * Fukushi Masaichi (福士 政一), Japanese physician and pathologist
 * Masaichi Kaneda (金田 正一), Japanese baseball player
 * Masaichi Kondō (近藤 政市), Japanese World War II flying ace
 * Masaichi Nagata (永田 雅一), Japanese film producer and baseball executive
 * Masaichi Niimi (新見 政一), Imperial Japanese Navy admiral