| Museum | Image | Location | Type | Notes | Ref |
|---|
| Atrium Gallery | | Centrepointe | Art | Works of local and regional artists, owned and operated by the City of Ottawa | [9] |
| Bank of Canada Museum | | Centretown | Currency | National Currency Collection | [10] |
| Billings Estate Museum | | Alta Vista | History | Historic house from 1828 home of early settler, costumed guides discuss city and region's history | [11] |
| Bytown Museum | | Centretown | History | City's early history and building of the Rideau Canal | [12] |
| Cameron Highlanders of Ottawa Museum | | Centretown | Military | Regimental history and artefacts, located in Cartier Square Drill Hall | [13] |
| Canada Council for the Arts | | Centretown | Art | A Crown Corporation established in 1957 to act as an arts council of the government | [14] |
| Canadian Photography Institute | | Lower Town | Art | Part of the National Gallery | [15] |
| Carleton County Gaol | | Centretown | Prison | Site of the last state execution in Canada. Jail tours and hostel | [16] |
| Carleton University Art Gallery | | Old South | Art | Gallery at Carleton University | [17] |
| Centrepointe Theatre Gallery | | Centrepointe | Art | Works of local and regional artists, operated by the City of Ottawa | [18] |
| City of Ottawa Art Galleries | | Centretown | Art | Art galleries owned and operated by the City of Ottawa | [19] |
| Cube Galley | | Wellington West | Art | Art Gallery featuring local artists | [20] |
| Cumberland Heritage Village Museum | | Cumberland | Living | 1920–1930s rural village | [21] |
| Diefenbunker Museum | | Carp | Military | Cold War bunker for the Canadian government | [22] |
| Dominion Arboretum | | Experimental Farm | Nature | Begun in 1889, the Arboretum covers about 26 hectares (64 acres) of land | [23] |
| Fairfields Heritage House | | Richmond | History | A 19th century Gothic Revival farm house | [24] |
| Foyer Gallery | | Tanglewood | Art | Artist-run gallery for regional art, located in the Nepean Sportsplex | [25] |
| Gallery 101 | | Centretown | Art | Artist-run contemporary art centre | [26] |
| Goulbourn Museum | | Stittsville | History | 19th and 20th century rural township life | [27] |
| Governor General's Foot Guards Regimental Museum | | Centretown | Military | History of the regiment | [28] |
| Kanata Civic Art Gallery | | Kanata | Art | The gallery exhibits and promotes original works of art | [29] |
| Karsh-Masson Gallery | | Centretown | Art | One of the City Hall art galleries | [30] |
| L. A. Pai Gallery | | Centretown | Art | Sculptural arts and contemporary jewelry | [31] |
| Laurier House National Historic Site | | Centretown | History | Home of two prime ministers | [32] |
| Lee Matasi Gallery | | ByWard Market | Art | An Ottawa School of Art Gallery | [33] |
| Library and Archives Canada | | Centretown | History | Exhibits from its collections | [34] |
| Mackenzie King Estate | | Kingsmere | History | Interactive exhibits and guided tours of faithfully restored artifacts, are open to visitors | [35] |
| Museum of Classical Antiquities | | Sandy Hill | History | Museum at Department of Classics and Religious Studies of the University of Ottawa | [36] |
| Nepean Fine Arts League Gallery | | Nepean | Art | Artist-run gallery | [37] |
| Nepean Museum | | City View | History | Makes accessible and communicates the former municipality of Nepean's history | [38] |
| Osgoode Township Museum | | Vernon | History | Archival material and artifacts reflect the history of the Township of Osgoode | [39] |
| Orange Art Gallery | | Centretown West | Art | Contemporary art | [40] |
| Ottawa Art Gallery | | Centretown | Art | Contemporary and 20th-century art | [41] |
| Ottawa Jewish Archives | | Highland Park | History | A collective memory of the Jewish community of Ottawa and National Capital Region | [42] |
| Ottawa Room | | Centretown | History | Ottawa’s written heritage for researchers and for residents with a passion for local history | [43] |
| Ottawa School of Art Galleries | | ByWard Market | Art | A wide variety of contemporary art as well as openings, artist talks, and events | [44] |
| Ottawa Sport Hall of Fame | | Kanata | Sports | Located in the Canadian Tire Centre | [45] |
| Parliament of Canada | | Centretown | History | Tours, displays, exhibits | [46] |
| Pinhey's Point Historic Site | | Dunrobin | History | 19th century estate home, park, and living museum | [47] |
| Rideau Hall | | Rockcliffe Park | History | Tours of the official residence of the Governor General of Canada | [48] |
| Royal Canadian Mint | | Lower Town | Currency | Interactive guided tours of the Mint's headquarters, founded in 1908 | [49] |
| SAW Gallery | | Centretown | Art | Artist-run gallery | [50] |
| Shenkman Arts Centre | | Orleans | Art | Works of local and regional artists, the Dust Evans Gallery of the Gloucester Pottery School, and the Ottawa School of Art Orléans Campus Gallery | [51] |
| Swords and Ploughshares Museum | | Kars | Military | Focus is the Citizen Soldier (the Militiaman and Reservist) at peace and at war, features many military trucks and vehicles | [52] |
| Symmes National Historic Site of Canada | | Aylmer | History | The Symmes Inn Museum is a catalyst for promoting local and regional history | [53] |
| Vanier Museopark | | Vanier | History | History of Vanier and the Francophone heritage of Ottawa | [54] |
| Watson's Mill | | Manotick | History | 19th century flour grist mill | [55] |
| Workers' History Museum | | Centretown | History | Workers’ history and heritage, in the National Capital Region and Ottawa Valley | [56] |
|