The 1999 IIHF Asian Oceanic Junior U18 Championship was the 16th edition of the IIHF Asian Oceanic Junior U18 Championship. For the first time the Championship was split into two separate divisions as the number of teams competing increased to eight. The Division I tournament took place between 10 and 13 February 2000 in Nikkō, Japan and the Division II tournament took place between 20 and 25 March 1999 in Pyongyang, North Korea. The Division I tournament was won by Japan, who claimed their tenth title by winning all three of their games and finishing first in the standings. Upon winning the tournament Japan gained promotion to Pool B of the 2000 IIHF World U18 Championships. South Korea and China finished second and third respectively.