| Ship | Owner | Operator | Status |
|---|---|---|---|
| Acona | NSF | U. Alaska | Out of UNOLS Service in 1979. |
| Alaminos | Texas A&M | Texas A&M | Out of UNOLS Service in 1973. |
| Alexander Agassiz | Scripps | Scripps | Out of UNOLS Service in 1976. |
| Alpha Helix | NSF | UAF | Out of UNOLS Service end of 2006. Purchased by CICESE in 2013. |
| Atlantic Explorer | BIOS | BIOS | In Service |
| Atlantis | Navy | WHOI | In Service |
| Atlantis II | WHOI | WHOI | Out of UNOLS Service in 1996. |
| Blue Fin | U. Georgia | Skidaway | Was replaced by R/V Savannah in late 2001. |
| Blue Heron | U. Minn | U. Minn | In Service |
| Calanus | U. Miami | U. Miami | Was replaced by R/V F. G. Walton Smith in early 2000. |
| Cape Hatteras | NSF | Duke U. | Out of UNOLS Service 2013. |
| Cape Henlopen | U. Delaware | U. Delaware | Was replaced by R/V Hugh R. Sharp in early 2006. |
| Cape Florida | NSF | U. Miami | Was renamed R/V Point Sur in 1985 after relocation to Moss Landing. |
| Cayuse | OSU | Moss Landing | Out of UNOLS Service in 1985. Relocated from OSU to Moss Landing in 1979. |
| Chain | Navy | WHOI | Out of UNOLS Service in 1975. |
| Clifford A. Barnes | NSF | U. Washington | Retired in 2018. |
| Columbus Iselin | U. Miami | U. Miami | Out of UNOLS Service in 1994. |
| Dolphin | Scripps | Scripps | Out of UNOLS Service in 1976. |
| Eastward | Duke U. | Duke U. | Out of UNOLS Service in 1980. |
| Edwin Link | HBOI | HBOI | Renamed R/V Seward Johnson II. |
| Edwin Link (ex. Sea Diver) | HBOI | HBOI | Out of UNOLS Service end of 2001. |
| Ellen B. Scripps | Scripps | Scripps | Out of UNOLS Service in 1984. |
| Endeavor | NSF | URI-GSO | In Service |
| F. G. Walton Smith | U. Miami | U. Miami | In Service |
| Fred H. Moore | U. Texas | U. Texas | Out of UNOLS Service in 1988. |
| Gerda | U. Miami | U. Miami | Out of UNOLS Service in 1972. |
| Golden Isles | U. Georgia | Skidaway | Out of UNOLS Service in 1975. |
| Gosnold | WHOI | WHOI | Out of UNOLS Service in 1972. Originally named Explorer until renamed to Gosnald. Transferred to WBOI in 1973. |
| Gyre | Navy | Texas A&M | Out of UNOLS Service end of August 2005. |
| Hugh R. Sharp | U. Delaware | U. Delaware | In Service |
| Hoh | Navy | U. Washington | Out of UNOLS Service in 1982. |
| Inland Seas | U. Michigan | U. Michigan | Out of UNOLS Service in 1973. Now owned & operated by Inland Seas Education Association. |
| James M. Gilliss | Navy | U. Miami | Out of UNOLS Service in 1979. Transferred to Mexican Navy in 1996. |
| Kilo Moana | Navy | U. Hawaii | In Service |
| Kit Jones | U. Georgia | Skidaway | Out of UNOLS Service in 1975. |
| Knorr | Navy | WHOI | Out of UNOLS Service end of 2014. |
| Kona Keoki | U. Hawaii | U. Hawaii | Out of UNOLS Service in 1984. |
| Laurentian | NSF | U. Michigan | Out of UNOLS Service end of 2001. |
| Longhorn | U. Texas | U. Texas | Out of UNOLS Service end of 2006. Currently leased to NOAA. |
| Marcus Langseth | NSF | Lamont-Doherty | In Service |
| Maurice Ewing | NSF | Lamont-Doherty | Was replaced by R/V Marcus Langseth in early 2006. |
| Maury | Johns Hopkins | Johns Hopkins | Out of UNOLS Service in 1972. |
| Melville | Navy | Scripps | Out of UNOLS Service end of 2014. |
| Moana Wave | Navy | U. Hawaii | Out of UNOLS Service in 1999. |
| Mysis | U. Michigan | U. Michigan | Out of UNOLS Service in 1973. |
| Neil Armstrong | Navy | WHOI | In Service |
| New Horizon | Scripps | Scripps | Out of UNOLS Service in 2015. |
| Oceanus | NSF | OSU | Out of UNOLS Service in 2022. |
| Oconostota | Navy | Moss Landing | Out of UNOLS Service in 1973. |
| Onar | Navy | U. Washington | Out of UNOLS Service in 1984. |
| Pelican | LUMCON | LUMCON | In Service |
| Point Sur | NSF | Moss Landing | Originally the R/V Cape Florida. Out of UNOLS Service at end of 2014. |
| Proteus | Stanford U. | Stanford U. | Out of UNOLS Service in 1972. |
| Rachel Carson | U. of Washington | U. of Washington | In Service |
| Ridgely Warfield | Johns Hopkins | Johns Hopkins | Out of UNOLS Service in 1990. |
| Robert Gordon Sproul | Scripps | Scripps | In Service |
| Robert T. Conrad | Navy | Lamont-Doherty | Out of UNOLS Service in 1989. |
| Roger Revelle | Navy | Scripps | In Service |
| Sally Ride | Navy | Scripps | In Service |
| Savannah | U. Georgia | Skidaway | In Service |
| Sea Diver | HBOI | HBOI | Renamed R/V Edwin Link. |
| Seward Johnson | HBOI | HBOI | Out of UNOLS Service end of 2009. |
| Seward Johnson II (ex. Edwin Link) | BIOS | BIOS | Purchased from HBOI late 2005. Christened R/V Atlantic Explorer in 2006. |
| Sikuliaq | NSF | UAF | In Service |
| Teritu | U. Hawaii | U. Hawaii | Out of UNOLS Service in 1973. |
| Thomas G. Thompson | Navy | U. Washington | In Service |
| Thomas G. Thompson (AGOR 9) | Navy | U. Washington | Out of UNOLS Service in 1988. Renamed Pacific Escort in 1990. Renamed Gosport in 1997. |
| Thomas Washington | Navy | Scripps | Out of UNOLS Service in 1992. Purchased by government of Chile, renamed Vidal Gormaz. |
| Trident | Navy | URI-GSO | Out of UNOLS Service in 1975. |
| Tursiups | Navy | FSU | Out of UNOLS Service in 1972. |
| Urraca | STRI | STRI | Out of UNOLS Service Fall 2008. |
| Velero IV | U. S. Calif. | U. S. Calif. | Out of UNOLS Service in 1985. |
| Vema | Columbia U. | Lamont-Doherty | Out of UNOLS Service in 1981. |
| Weatherbird II | BIOS | BIOS | Out of UNOLS Service end of 2005. |
| Wecoma | NSF | OSU | Out of UNOLS Service in 2011. |
| Yaquina | OSU | OSU | Out of UNOLS Service in 1975. |
Institutions and Abbreviations:
BIOS: Bermuda Institute of Ocean Sciences
Columbia U.: Columbia University
Duke U.: Duke University
FSU: Florida State University
HBOI: Harbor Branch Oceanographic Institution (Florida Atlantic University)
Johns Hopkins: Johns Hopkins University
Lamont-Doherty: Lamont-Doherty Earth Observatory (Columbia U.)
LUMCON: Louisiana Universities Marine Consortium
Moss Landing: Moss Landing Marine Laboratories
Navy: United States Navy
NSF: National Science Foundation
OSU: Oregon State University
Scripps: Scripps Institution of Oceanography (U. C. San Diego)
Skidaway: Skidaway Institute of Oceanography (U. Georgia)
Stanford U.: Stanford University
STRI: Smithsonian Tropical Research Institute
Texas A&M: Texas A&M University
U. Alaska: University of Alaska
U. Delaware: University of Delaware
U. Georgia: University of Georgia
U. Hawaii: University of Hawaii
U. Miami: University of Miami (Rosenstiel School)
U. Michigan: University of Michigan
U. Minn: University of Minnesota
U. S. Calif: University of Southern California
U. Texas: University of Texas
U. Washington: University of Washington
URI-GSO: University of Rhode Island Graduate School of Oceanography
WHOI: Woods Hole Oceanographic Institution