Álmos, also Almos or Almus, was—according to the uniform account of Hungarian chronicles—the first head of the "loose federation" of the Hungarian tribes from around 850. Whether he was the sacred ruler (kende) of the Hungarians or their military leader (gyula) is subject to scholarly debate. According to Constantine Porphyrogenitus, he accepted the Khazar khagan's suzerainty in the first decade of his reign, but the Hungarians acted independently of the Khazars from around 860. The 14th-century Illuminated Chronicle narrates that he was murdered in Transylvania at the beginning of the Hungarian conquest of the Carpathian Basin around 895.

The Magyar or Hungarian tribes or Hungarian clans were the fundamental political units within whose framework the Hungarians (Magyars) lived, before the Hungarian conquest of the Carpathian Basin and the subsequent establishment of the Principality of Hungary.