The 2018 Nagoya Grampus season was Nagoya Grampus' first season back in the J1 League following their relegation at the end of the 2016 season, their 25th J1 League season and 35th overall in the Japanese top flight. They also took part in the Emperor's Cup and the J. League Cup.
|- |colspan="14"|Players away on loan:
|- |colspan="14"|Players who left Nagoya Grampus during the season: