The Thirteen Buddhas (Jp. 十三仏 jūsanbutsu) is a purely Japanese grouping of various important Buddhist deities. The deities are, in fact, mostly not Buddhas at all, but also include assorted bodhisattvas and Wisdom Kings.

The Thirteen Buddhas are an important part of a traditional Japanese Buddhist funeral service, with each "Buddha" having a corresponding memorial service. The thirteen in Japanese and Sanskrit and the corresponding date of their service after the death are:

1. Fudo Myo-o (Acala), 7th day
2. Shaka (Shakyamuni), 14th day
3. Monju (Manjusri), 21st day
4. Fugen (Samantabhadra), 28th day
5. Jizo (Ksitigarbha), 35th day
6. Miroku (Maitreya), 42nd day
7. Yakushi (Bhaisajyaguru), 49th day
8. Kannon (Avalokitesvara), 100th day
9. Seishi (Mahasthamaprapta), 1st anniversary
10. Amida (Amitabha), 2nd anniversary
11. Ashuku (Akshobhya), 6th anniversary
12. Dainichi (Vairocana), 12th anniversary
13. Kokuzo (Akasagarbha), 32nd anniversary