Achmad Djajadiningrat
| Kandjeng Pangeran Aria Adipati Achmad Djajadiningrat | |
|---|---|
| Born | August 16, 1877 | 
| Died | December 22, 1943 (aged 66) | 
| Resting place | Purwakarta | 
| Occupation | Official | 
| Years active | 1901–1929 | 
| Title | Regent of Serang (1901–1924), Regent of Batavia (1924–1929) | 
| Spouses | 
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| Children | Erna Djajadiningrat Idrus Nasir Djajadiningrat | 
| Parent(s) | Raden Bagus Djajawinata (father) Ratu Salehah (mother) | 
| Relatives | Hilman Djajadiningrat (brother), Hasan Djajadiningrat (brother) | 
Kandjeng Pangeran Aria Adipati Achmad Djajadiningrat (EYD is Achmad Jayadiningrat; August 16, 1877 in Pandeglang – December 22, 1943 in Purwakarta) was a prominent colonial Indonesian bureaucrat who served as Regent of Serang (1901–1924), and subsequently of Batavia (1924–1929). He was also a member of the Volksraad (or colonial legislature) of the Dutch East Indies.