The 2019 Spring Workshop of the Korea Towing Tank Conference (KTTC) was held at the DSME Siheung R&D Center, Siheung Campus, Seoul National University, on April 18 and 19, 2019. Attended by 90 members, the spring workshop began with an opening address by KTTC Chairperson Mun-Chan Kim (Pusan National University). A total of 15 research papers were presented on resistance and propulsion, seakeeping and maneuvering, and marine engineering. The workshop afforded a meaningful occasion for members to exchange information and share technologies. Moreover, on the first day of the workshop, the participants visited the DSME towing tank facility, completed in 2018, and watched a launching ceremony. The KTTC Fall Workshop will be held at Hyundai Heavy Industries in October, 2019.