ROKS Sung In Bong (LST-685) is a Go Jun Bong-class tank landing ship in the Republic of Korea Navy.

[1] The ship was launched in 1996 by Hanjin Heavy Industries at Busan and commissioned into the Navy in 1999.

On 3 February 2010, she and HTMS Surin transits the Gulf of Thailand during an exercise with the USS Harpers Ferry (LSD-49).

[2]