'''Gilbert Jay Arenas Jr.''' (lahir [[6 Januari]], [[1982]] di [[Miami, Florida]]<ref>http://www.washingtonian.com/articles/sports/2268.html "Gilbert Arenas: The Assassin", by Fred Barnes</ref>) adalah pemain [[bola basket]] [[Amerika Serikat]] yang bermain di klub [[National Basketball Association|NBA]] [[Washington Wizards]]. Arenas adalah keturunan [[Kuba-Amerika]] dan [[Afrika-Amerika]]. Arenas sebagian sering dijuluki "Agent Zero," tapi kadang-kadang dipanggil "The Hibachi,"<ref>[http://www.nytimes.com/2007/01/05/sports/basketball/05arenas.html?ex=1325653200&en=8bddd5a362981e92&ei=5088&partner=rssnyt&emc=rss Arenas Spices His Game With a Touch of Levity], ''New York Times'', published January 5, 2007</ref> orang Jepang yang kecil "fire bowl." Kedua nama itu menjadi favorit fans di [[Washington, D.C.|Washington]].
