Volleyball at the 2025 SEA Games took place in Bangkok and Chonburi, Thailand from 10 to 19 December 2025. The 2025 Games featured competitions in four events. The indoor volleyball competition took place at Indoor Stadium Huamark in Bangkok, and the beach volleyball competitions were held at Jomtien Beach in Chonburi.
The tournament featured 7 countries. There was one group of three teams and one group of four teams with round-robin format each. The top two of each group played in the semifinal round. The winners of the semifinal round played for the gold medal and the losers played for the bronze medal.
The tournament featured 7 countries. There was one group of three teams and one group of four teams with round-robin format each. The top two of each group played in the semifinal round. The winners of the semifinal round played for the gold medal and the losers played for the bronze medal.
The tournament featured 7 countries separated into 2 pools with round robin format. Each country had 2 pairs of players playing in a best of 3 set match. The top two of group played in the semifinal round. The winners of the semifinal round played for the gold medal and the losers played for the bronze medal.
The tournament featured 6 countries with round robin format. Each country had 2 pairs of players playing in a best of 3 set match. The top two played for the gold medal and the third and fourth place played for the bronze medal.