Adalbert Mikhailovich Erdeli (Ерделі, Адальберт, also seen as Erdely, born Béla Erdélyi; May 25, 1891 - September 19, 1955) was a Subcarpathian painter, one of the main figures of midcentury Transcarpathian art.
Erdeli was born in Kelemenfalva, Austria-Hungary (today Климовиця, Ukraine).He studied at the Budapest Academy of Arts from 1911 through 1915, then taught in Mukačevo (now Mukachevo, Ukraine) and Užhorod (now Uzhhorod, Ukraine), when Transcarpathia already became part of Czechoslovakia.
Along with fellow Budapest graduate and World War I veteran József Boksai, Erdeli founded an art school in 1927, which eventually evolved into the Užhorod State Arts and Crafts College (Czech: Užhorodské státní vysoké školy uměleckoprůmyslové, Hungarian: Kárpátaljai Képzőművészek Egyesülete).That institution is now the Transcarpathian Art Institute.Erdeli and Boksay are among the primary figures of the Transcarpathian stylistic school.
Among his students was Fedir Manailo.He died in Uzhhorod.