ROKS Soyang (AOE-51) is a fast combat support ship of the Republic of Korea Navy; she is named after the Soyang River.
On 7 September 2018, the Defense Acquisition Program Administration announced that Hyundai Heavy Industries had delivered Soyang to the Republic of Korea Navy.
She has a length of and a width of . The vessel is capable of embarking a helicopter on her helipad. She carriers a single Phalanx CIWS and MASS decoy launchers. The vessel's displacement is about and has a crew of 140. She runs on both hybrid diesel and electric engines with two shafts. The ship has a maximum speed of and a range of .
ROKS Soyang was laid down on 13 July 2015 and launched on 29 November 2016 by Hyundai Heavy Industries and commissioned on 18 September 2018.
On 17 November 2020, ROKS Soyang transferred medical supplies to offshore Manila, Philippines. Soyang sent three speed boats, masks and sanitizers for prevention of COVID-19 to the Philippines Navy ship during the exchange.