NOAAS Chapman (R 446) was an American fisheries research vessel that was in commission in the National Oceanic and Atmospheric Administration (NOAA) fleet from 1980 to 1998. After the conclusion of her NOAA career, she spent several years operating as the University of Puerto Rico marine research vessel R/V Chapman. More recently, she has become the Curaçao-based mothership for the deep-diving submarine Curasub.