Ryota Igarashi (五十嵐 亮太, Igarashi Ryōta, born May 28, 1979) is a Japanese former professional baseball pitcher. He has played in Nippon Professional Baseball (NPB) for the Tokyo Yakult Swallows, Fukuoka SoftBank Hawks and in Major League Baseball (MLB) for the New York Mets, Toronto Blue Jays and New York Yankees.