The number three
Trei is a modern variation of the name Trey, which originated as a nickname for a third-born son or a son who shares the same name as his father and grandfather. It is derived from the Middle English and Old French word for the number three.
Fewer than 5 boys were named Trei in 2025.
US births per 5-year period, 1990–present (SSA data).
American college football player
American football coach