Humberto Brenes (Spanish pronunciation: [umˈbeɾto ˈβɾenes]; born May 8, 1951) is a Costa Rican professional poker player.

In 1988, Brenes made the final table of the World Series of Poker (WSOP) main event, finishing in fourth place and winning $83,050.

[4] Brenes's unique dress makes him easy to spot at tournaments, as he tends to wear bright tracksuits, two pairs of glasses, one on top of the other, and a visor.

[11] However, with the 83rd-place finish, Brenes made WSOP history with the largest number of Main Event players outlasted in a two-year span with 15,012.

[12] His 72 cashes in the WSOP account for $2,264,333 of those winnings, which he takes credit personally but also attributes greatly to his mentor and coach, Andrés "El Pemorado" Calderón.