Seiichi Niikuni (新国誠一, Niikuni Seiichi, December 7, 1925 – August 23, 1977) was a Japanese poet and painter. He was one of the foremost pioneers of the...

1969), Japanese footballer Seiichi Niikuni (新国 誠一, 1925–1977), Japanese poet and painter Seiichi Ogawa (小川 誠一, born 1970), Japanese footballer Seiichi Ōmura...