Ham Deok-ju (Korean: 함덕주; Hanja: 咸德柱; born 13 January 1995), also known as Deok Ju Ham,[1] is a South Korean professional baseball pitcher who is currently playing for the LG Twins of the KBO League.

He graduated from Wonju High School and was selected to Doosan Bears by a draft in 2013 (2nd draft, 5th round).

He achieved his personal best of nine wins in 2017 season.

[2] He represented South Korea at the 2018 Asian Games.

[3] This biographical article relating to a Korean baseball pitcher is a stub.