Yggdrasil (ユグドラシル, Yugudorashiru) is the fourth studio album by Bump of Chicken, released on August 25, 2004. It included the singles "Snow Smile", "Lost Man/Sailing Day", "Only Lonely Glory", and "Sharin no Uta". The album peaked at #1 on Oricon Weekly Charts and was #19 on the 2004 Oricon Top 100 Albums.

All tracks written by Fujiwara Motoo.