The 2018 Men's Volleyball Kor Royal Cup was the latest edition of the Men's Volleyball Kor Royal Cup, the tournament patronized by Princess Maha Chakri Sirindhorn, The Princess Royal of Thailand for men's senior volleyball clubs, also known as 2018 Sealect Tuna Men's Senior Volleyball Kor Royal Cup Thailand Championship due to the sponsorship deal with Sealect Tuna.

A total of 6 teams will compete in the tournament.

[1] All times are Indochina Time (UTC+07:00).

Match won 3–0 or 3–1: 3 match points for the winner, 0 match points for the loser Match won 3–2: 2 match points for the winner, 1 match point for the loser