Suborder: Smågnagere (Myomorpha)
| Site | Municipality (county) | Num. obs. | Num. species | Num. images | Last obs. | |
|---|---|---|---|---|---|---|
| Ødegård | Agder, Norway | 2 | 1 | 0 | 2022-01-22 | |
| Øiseth, Atnedalen | Innlandet, Norway | 3 | 2 | 0 | 2023-01-29 | |
| Øksnevadtjørna | Rogaland, Norway | 2 | 2 | 0 | 1994-11-23 | |
| Ølbergholmen | Vestfold, Norway | 1 | 1 | 0 | 1998-09-24 | |
| Ørnskardet | Nordland, Norway | 2 | 1 | 0 | 2024-01-28 | |
| Ørskogfjellet | Møre og Romsdal, Norway | 1 | 1 | 0 | 2014-01-20 | |
| Ørskogvika | Møre og Romsdal, Norway | 1 | 1 | 0 | 1994-11-04 | |
| Ørsnes | Nordland, Norway | 1 | 1 | 0 | 2017-01-31 | |
| Østbyfaret 9 B | Oslo, Norway | 1 | 1 | 0 | 2022-01-30 | |
| Østbyveien 32 | Trøndelag, Norway | 1 | 1 | 0 | 2024-01-28 | |
| Østre Halsen | Vestfold, Norway | 3 | 1 | 0 | 1996-10-16 | |
| Østre Jevnaker | Akershus, Norway | 1 | 1 | 0 | 2019-01-22 | |
| Østre Løes | Akershus, Norway | 2 | 1 | 0 | 2024-01-28 | |
| Østre Myra | Akershus, Norway | 2 | 1 | 0 | 2021-01-31 | |
| Østre solberg | Akershus, Norway | 1 | 1 | 0 | 2021-02-07 | |
| Østre Torgauten vei 78 | Østfold, Norway | 1 | 1 | 0 | 2021-02-03 | |
| Østre Ås | Akershus, Norway | 2 | 1 | 0 | 2024-01-27 | |
| Øverbygdsvegen 105 | Innlandet, Norway | 2 | 1 | 0 | 2017-01-28 | |
| Øveråsveien 10 | Trøndelag, Norway | 3 | 1 | 0 | 2024-01-27 | |
| Øvrabø | Rogaland, Norway | 1 | 1 | 0 | 2024-01-28 | |
| Øvratun | Vestland, Norway | 1 | 1 | 0 | 2023-02-04 | |
| Øvre Ringvei 52 Vågsbygd | Agder, Norway | 2 | 1 | 0 | 2022-02-02 | |
| Øvre Andersdal | Troms, Norway | 2 | 1 | 0 | 2022-01-30 | |
| Øvre Haraldstad | Agder, Norway | 3 | 1 | 0 | 2024-01-28 | |
| Øvre Kleppe | Vestland, Norway | 1 | 1 | 0 | 2023-01-29 | |
| Øvre Nausthaugen | Trøndelag, Norway | 1 | 1 | 0 | 2021-01-31 | |
| øvre nord Tretten | Innlandet, Norway | 1 | 1 | 0 | 2018-01-27 | |
| Øvre Prinsdalsvei | Oslo, Norway | 1 | 1 | 0 | 2019-01-23 | |
| Øvre Røynås | Agder, Norway | 1 | 1 | 0 | 2021-01-31 | |
| Øyagrenda follo | Trøndelag, Norway | 2 | 1 | 0 | 2021-01-31 | |
| Øyane-Skeie | Rogaland, Norway | 4 | 1 | 0 | 1998-06-09 | |
| Øyangen | Trøndelag, Norway | 1 | 1 | 0 | 2014-01-31 | |
| Øyenmoen | Buskerud, Norway | 1 | 1 | 0 | 2020-02-02 | |
| Øyer | Innlandet, Norway | 2 | 1 | 0 | 2017-01-29 | |
| Øyfjell /Nordli | Telemark, Norway | 2 | 1 | 0 | 2013-02-02 | |
| Øygardsåsen 4 | Agder, Norway | 1 | 1 | 0 | 2021-01-31 | |
| Øynes | Nordland, Norway | 1 | 1 | 0 | 2018-01-28 | |
| Øyrane, Blakset | Vestland, Norway | 2 | 1 | 0 | 2015-01-25 | |
| Øyrevegen 9 | Vestland, Norway | 1 | 1 | 0 | 2021-01-30 | |
| Åbål, 4760 Birkeland | Agder, Norway | 1 | 1 | 0 | 2018-01-26 | |
| Åfjordvegen 877 | Vestland, Norway | 1 | 1 | 0 | 2024-01-22 | |
| Åkvika | Møre og Romsdal, Norway | 4 | 3 | 0 | 2022-01-30 | |
| Åloneset 133 | Agder, Norway | 2 | 1 | 0 | 2022-01-29 | |
| Åmot | Buskerud, Norway | 1 | 1 | 0 | 2023-01-28 | |
| Årefjorden | Østfold, Norway | 1 | 1 | 0 | 2021-02-01 | |
| Årefjordstien 22 , 1570 Dilling | Østfold, Norway | 1 | 1 | 0 | 2021-01-31 | |
| Årnes | Akershus, Norway | 1 | 1 | 0 | 2021-01-26 | |
| Ås | Telemark, Norway | 1 | 1 | 0 | 2024-01-27 | |
| Åse | Møre og Romsdal, Norway | 2 | 1 | 0 | 2018-01-28 | |
| Åsen | Telemark, Norway | 1 | 1 | 0 | 2020-01-25 |
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