The J1 League (J1ãªã¼ã° J1 RÄ«gu) is the top division of the Japan Professional Football League (æ¥æ¬ãããµãã«ã¼ãªã¼ã° Nihon Puro SakkÄ RÄ«gu) and the top professional association football J.League in Japan. It is one of the most successful leagues in Asian club football. Currently, the J1 League is the first level of the Japanese association football league system. The second tier is represented by the J2 League. It is currently sponsored by Meiji Yasuda Life and thus officially known as the Meiji Yasuda J1 League. Until the 2014 season it was named the J.League Division 1.