Major-General George R Pearkes Building

The Department of National Defence (DND; French: Ministère de la Défense nationale) is the department of the Government of Canada which supports the Canadian Armed Forces in its role of defending Canadian national interests domestically and internationally. The department is a civilian organization, part of the public service, and supports the armed forces; however, as a civilian organization is separate and not part of the military itself. National Defence is the largest department of the Government of Canada in terms of budget, and it is the department with the largest number of buildings (6,806 in 2015).The department is responsible to Parliament through the minister of national defence – Anita Anand as of 2022. The deputy minister of National Defence, the senior most civil servant within the department, is responsible for the day-to-day leadership and operations of the department and reports directly to the minister. The department exists to aid the minister in carrying out their responsibilities within the Defence Portfolio and provides a civilian support system for the Canadian Armed Forces. Under the National Defence Act, the Canadian Armed Forces is a completely separate and distinct organization from, and is not part of, the Department of National Defence.

National Defence Headquarters (NDHQ) (French: Quartiers généraux de la Défense nationale (QGDN)) was created through the integration of Canadian Armed Forces Headquarters (CAF HQ) with the civilian Department of National Defence (DND) staff in October of 1972. NDHQ is not a specific location, but is instead housed throughout a collection of offices in buildings across the National Capital Region, although it is most commonly identified with the Major-General George R Pearkes Building on Colonel By Drive in Ottawa. From 2017, various locations have been consolidating at National Defence Headquarters, Carling Campus on Carling Avenue.

The Canadian Forces Language School (CFLS) is an institution of the Canadian Forces responsible for providing language education. The CFLS has its headquarters in Gatineau, Quebec, along with its National Capital Region Training Company, and detachments at Saint-Jean-sur-Richelieu, Quebec, and Borden, Ontario. Since 1993, CFLS Detachment Borden, located at Bldg P 153, has been teaching English as a Foreign Language to military officers from Central and Eastern European countries and Far East Countries. Currently, 17 European and 2 Far Eastern countries are represented at the school. The course is sponsored by the Military Training Assistance Program, one of Canada's initiatives through the Partnership for Peace Programme. CFLS offers two 17-week and four 10-week courses annually. The objective is to provide foreign officers with a working ability in English, while acquainting them with the Canadian Forces and Canadian society. The officers, ranging from Second Lieutenants to Generals, have served or may serve on with NATO, the UN, or as military attachés.

The Laurier Avenue Bridge is a bridge in Ottawa, Ontario, Canada. It carries Laurier Avenue over the Rideau Canal and also Colonel By Drive and Queen Elizabeth Driveway. The green steel arches makes the bridge one of the most recognizable in Ottawa. Many of the events of Winterlude are held around the bridge, and it is a common background to pictures of skaters on the canal. The southern entrance to the Department of National Defence Headquarters is located on the eastern portion of the bridge. The first bridge in the location was constructed in 1872. The current four lane bridge was originally built in 1900 and it was extended to the west in 1945. It was originally operated by the National Capital Commission, but in 1996 it and the Mackenzie King Bridge were handed over to the city as the NCC did not have enough money for needed maintenance. In 2001, the bridge was expanded and repaired. The top surface was expanded by 50% allowing wider lanes, dedicated bike paths, and much wider sidewalks. The area around the bridge was also beautified with landscaping and new stairs connecting to the bridge.

The Ottawa Jail Hostel is a hostel operated by Saintlo Hostels and located at 75 Nicholas Street in Ottawa, Ontario, Canada. The hostel was originally the Carleton County Gaol (jail), more commonly known as the Nicholas Street Gaol or Ottawa Jail. When the jail closed in 1972, Hostelling International purchased and converted the building, but left much of the structure intact, allowing guests to experience spending a night "in jail". The top floor, which had served as the jail's death row, has been restored to much of its original condition and daily tours are conducted. In 2009, the hostel's bar, Mugshots, was opened to the public. In July 2011, the courtyard space of the former jail was converted into an outdoor bar for the summer months.As of April 1, 2022 the hostel is no longer affiliated with Hostelling International. The hostel intends to reopen in April 2023 under Saintlo Hostels.

The Rideau Centre (French: Centre Rideau) (corporately styled as CF Rideau Centre) is a three-level shopping centre on Rideau Street in Ottawa, Ontario, Canada. It borders on Rideau Street, the ByWard Market, the Rideau Canal, the Mackenzie King Bridge, and Nicholas Street in Downtown Ottawa. Over 20 million people visit the mall annually. It is the largest shopping mall and the main transit hub in the National Capital Region and the sixth largest mall, by area, in Canada. The Rideau Centre complex has approximately 180 retailers and is connected to a rooftop park, a Westin Hotel, the Shaw Centre, the Freiman Mall and the Major-General George R Pearkes Building.

The Mackenzie King Bridge is a bridge over the Rideau Canal in Ottawa, Ontario, Canada. Just a few blocks away from Parliament Hill, south of the Plaza Bridge, it runs in a generally east–west direction, with the east end at the Rideau Centre and Department of National Defence Headquarters. The west end runs between the National Arts Centre and Confederation Park. It was named for William Lyon Mackenzie King (1874–1950), Canada's longest-serving prime minister and was opened to traffic in 1951. A major restoration effort was completed in 1996–1998. OC Transpo uses the bridge for stops at the Mackenzie King Station. The bridge was originally to be named after Colonel John By. At the suggestion of Solon Low, the bridge was named for King instead.

The Drill Hall at Cartier Square is a dedicated military training facility in Ottawa, Ontario, Canada. It has been a local landmark since its construction in 1879. The drill hall is 70 metres (230 ft) long and has two 43-metre-tall (141 ft) mansard towers. The hall is located on the bank of the Rideau Canal just south of Laurier Avenue. The area to the west was once a large open field used for drilling, but today is the location of the Ottawa City Hall and courthouse.

The Cameron Highlanders of Ottawa (Duke of Edinburgh's Own) is a Canadian Army Primary Reserve infantry regiment.

The Governor General's Foot Guards (GGFG) is the senior reserve infantry regiment in the Canadian Army. Located in Ottawa at the Cartier Square Drill Hall, the regiment is a Primary Reserve infantry unit, and the members are part-time soldiers. The GGFG are infantry reserve soldiers who train part-time and full-time for domestic operations and international missions. This involves training for domestic operations where the unit deployed members to help during a natural disaster or public emergency such as it did during the 1998 Ice Storm, flooding in 2017 and 2019, and during the COVID-19 pandemic in 2020. It also involves training for international operations and support to the Regular Force on operations in countries such as Afghanistan, Sudan, Iraq, Jordan, Egypt, Latvia, and Ukraine where troops from the regiment have deployed in recent years. Members of the GGFG train part time between September and June, usually Tuesday evenings and one weekend a month. Between May and August, members can be employed full time in a variety of roles such as students or instructors on training courses, taking part in tasks such as the Ceremonial Guard, and attending field exercises. The regiment also runs supplementary training programs such as the marksmanship program to improve shooting skills, and the leadership development training program to prepare soldiers to attend leadership courses. Additionally the regiment runs sports and fitness programs. The GGFG are also affiliated with 1st Battalion, The Royal Canadian Regiment (1 RCR) for reserve integration training. The GGFG perpetuate the 2nd Canadian Battalion (Eastern Ontario Regiment), CEF, and 77th Battalion (Ottawa), CEF, from the First World War.

University of Ottawa’s Graduate School of Public and International Affairs (GSPIA) (or l'École supérieure d'affaires publiques et internationales de l'Université d'Ottawa (ESAPI)) is a professional public and international policy school at the Faculty of Social Sciences at the University of Ottawa in Ottawa, Ontario, Canada.

The Telfer School of Management (French: École de gestion Telfer) is a business school located at the University of Ottawa in Ottawa, Ontario, Canada. The school is named in honour of one university alumnus, Ian Telfer (MBA 1976), who made a significant donation to the University of Ottawa. The donation of $25 million to the school's business program was the largest donation in Canadian history to be given to a business school, until Steven Smith's donation of $50 Million to the Queen's School of Business.