Son Ah-seop (born March 18, 1988, in Busan, South Korea) is a South Korean professional baseball player for the Lotte Giants of the KBO League.
An outfielder, he is one of the most consistent hitters in the KBO, having hit above .300 ten years in a row (from 2010 to 2018), and winning the KBO League Golden Glove Award four consecutive times. His .322 lifetime batting average ranks in the top ten all-time for the KBO.
Son attended Busan High School. He led the KBO League in hits in 2012 and 2013.