The Asian Men's U18 Volleyball Championship is an international volleyball competition in Asia and Oceania contested by the under-18 men's national teams of the members of Asian Volleyball Confederation (AVC), the sport's Asian-continent governing body. Tournaments have been held every two years since 1997. It broke its biennial design only in 2008, a year after it held its 2007 competition in Colombo, and in 2018, following the holding of a competition in 2017 in Naypyidaw after the tournament skipped the year 2016. It formerly carried the title Asian Boys' U19 Volleyball Championship (in the tournament's 11th edition), Asian Boys' U18 Volleyball Championship (in the 10th edition), Asian Youth Boys' Volleyball Championship (in the 4th-9th editions), and Asian Youth Men's Volleyball Championship (in the 1st, 2nd and 3rd editions).
The top four teams of each tournament qualified for the FIVB Volleyball Boys' U19 World Championship. The current champion is China, which won its first title at the 2024 tournament.
14 of the championship's tournaments have been won by six different national teams. Iran have won seven times and Japan have won three times. The other winners are China, Chinese Taipei, South Korea and India with one title each.