Phylum: Ochrophyta
| Site | Municipality (county) | Num. obs. | Num. species | Num. images | Last obs. | |
|---|---|---|---|---|---|---|
| Vedavågen | Rogaland, Norway | 177 | 6 | 0 | 1994-11-25 | |
| Veierland | Vestfold, Norway | 18 | 7 | 0 | 2002-08-22 | |
| Verdens ende | Vestfold, Norway | 202 | 7 | 0 | 1997-10-09 | |
| Vergøy | Vestfold, Norway | 89 | 5 | 0 | 1996-09-10 | |
| Vesterhavna | Agder, Norway | 264 | 6 | 0 | 2010-11-10 | |
| Vesterøy | Vestfold, Norway | 165 | 7 | 0 | 1997-05-26 | |
| Vesterøya | Vestfold, Norway | 106 | 7 | 0 | 1996-09-26 | |
| Vesterøya | Vestfold, Norway | 241 | 7 | 0 | 2000-05-30 | |
| Vestfjord | Vestfold, Norway | 111 | 6 | 0 | 1995-10-01 | |
| Vestre | Møre og Romsdal, Norway | 20 | 6 | 0 | 1995-09-15 | |
| Vestre Åmøy | Rogaland, Norway | 1 | 1 | 0 | 1993-10-11 | |
| Vestrevika, Bildøyna | Vestland, Norway | 6 | 3 | 0 | 2020-08-28 | |
| Vevang | Møre og Romsdal, Norway | 204 | 6 | 0 | 1995-08-31 | |
| Viggja | Trøndelag, Norway | 30 | 6 | 0 | 1993-10-21 | |
| Vigra | Møre og Romsdal, Norway | 137 | 7 | 0 | 1995-10-17 | |
| Vikerauntjønna | Trøndelag, Norway | 7 | 4 | 0 | 1994-09-20 | |
| Vikestad | Nordland, Norway | 16 | 5 | 0 | 1997-10-29 | |
| Vikøyri | Vestland, Norway | 27 | 6 | 0 | 1993-12-14 | |
| Viste | Rogaland, Norway | 39 | 6 | 0 | 1994-12-05 | |
| Viste | Rogaland, Norway | 264 | 7 | 0 | 1996-10-02 | |
| Vågavegen 5 | Møre og Romsdal, Norway | 4 | 4 | 0 | 2020-06-02 | |
| Vågehamn | Nordland, Norway | 234 | 6 | 0 | 1995-10-12 | |
| Vålåsjøen | Innlandet, Norway | 12 | 5 | 0 | 1993-06-09 | |
| York | Vestfold, Norway | 41 | 7 | 0 | 1994-11-10 | |
| Ytre Flosterøy | Agder, Norway | 169 | 7 | 0 | 1998-09-22 | |
| Ytre Ulvøya | Agder, Norway | 90 | 6 | 0 | 1994-12-09 | |
| Ytterøy | Trøndelag, Norway | 458 | 6 | 0 | 1997-09-23 | |
| Øksnevadtjørna | Rogaland, Norway | 4 | 3 | 0 | 1993-05-25 | |
| Ølbergholmen | Vestfold, Norway | 302 | 7 | 0 | 1998-09-24 | |
| Ørsjøen | Innlandet, Norway | 1 | 1 | 0 | 1993-09-02 | |
| Ørskogvika | Møre og Romsdal, Norway | 366 | 7 | 0 | 2001-09-24 | |
| Østerhavna | Agder, Norway | 24 | 7 | 0 | 2011-09-08 | |
| Østernvannet | Akershus, Norway | 4 | 2 | 0 | 1990-08-28 | |
| Østerøya | Vestfold, Norway | 24 | 5 | 0 | 1994-11-10 | |
| Østre Halsen | Vestfold, Norway | 151 | 6 | 0 | 1996-10-16 | |
| Østre Kvaknes-Staubø | Agder, Norway | 95 | 7 | 0 | 1994-11-04 | |
| Øvre Storfjordvatnet | Nordland, Norway | 14 | 10 | 0 | 1990-08-30 | |
| Øyane-Skeie | Rogaland, Norway | 28 | 7 | 0 | 1998-06-09 | |
| Åfarnes | Møre og Romsdal, Norway | 227 | 6 | 0 | 1995-09-27 | |
| Åfjord | Trøndelag, Norway | 58 | 5 | 0 | 1995-09-14 | |
| Åheim | Møre og Romsdal, Norway | 306 | 6 | 0 | 1997-10-08 | |
| Åkrehamn | Rogaland, Norway | 125 | 7 | 0 | 1994-11-25 | |
| Årefjordstranda øst | Østfold, Norway | 3 | 3 | 0 | 2016-09-08 | |
| Åros | Akershus, Norway | 35 | 4 | 0 | 1996-10-23 | |
| Årstadtjødne | Rogaland, Norway | 3 | 2 | 0 | 1996-10-11 | |
| Årungen | Akershus, Norway | 2 | 1 | 0 | 1990-09-17 | |
| Årøykilen til Askelundkilen | Vestfold, Norway | 56 | 6 | 0 | 1995-09-28 | |
| Åsgårdstrand | Vestfold, Norway | 125 | 7 | 0 | 2007-06-07 | |
| Åstveit | Vestland, Norway | 118 | 6 | 0 | 1995-09-20 | |
| Åstveitvannet | Vestland, Norway | 11 | 8 | 0 | 1991-09-27 |
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