亨利·路易斯·阿伦（英语：Henry Louis Aaron，1934年2月5日－），暱称为汉克·阿伦（英语：Hank Aaron），旧译艾伦，前美国职棒大联盟的球员，棒球名人堂的成员之一。1954年加入密尔瓦基勇士队，从此展开职业生涯，1966年勇士南迁亚特兰大，1975年转队于密尔瓦基酿酒人队打球，1976年球季结束退休。1974年阿伦打破贝比·鲁斯714支的全垒打纪录，1976年退休时保有755支全垒打纪录，2007年8月7日被贝瑞·邦兹以756支打破；阿伦同时也是生涯最多打点（2297）、垒打数（6856）的保持者。在1957年的密尔瓦基勇士得到唯一的世界大赛冠军戒指，同时也获选当年的国联最有价值球员。他得过3次金手套奖，并且入选21次明星赛，为史上第一。

Henry Louis "Hank" Aaron (born February 5, 1934), nicknamed "Hammer", or "Hammerin' Hank", is a retired American Major League Baseball (MLB) right fielder. He played 21 seasons for the Milwaukee/Atlanta Braves in the National League (NL) and 2 seasons for the Milwaukee Brewers in the American League (AL), from 1954 through 1976. Aaron held the MLB record for career home runs for 33 years, and he still holds several MLB offensive records. He hit 24 or more home runs every year from 1955 through 1973, and is one of only two players to hit 30 or more home runs in a season at least fifteen times. In 1999, The Sporting News ranked Aaron fifth on its "100 Greatest Baseball Players" list.