Durham Catholic District School Board

Monsignor Paul Dwyer Catholic High School, commonly referred to as Dwyer, is a Catholic high school in Oshawa, Ontario, Canada within the Durham Catholic District School Board (DCDSB). The school offers curricula for students in grades 9–12 and a wide range of academic and extracurricular activities. The school prides itself on its athletic and art programs, with several alumni becoming athletes.

R.S. McLaughlin Collegiate and Vocational Institute is a secondary school located in Oshawa, Ontario within the Durham District School Board.

The Ontario Regiment (RCAC) Museum is a military museum located in Oshawa, Ontario, Canada. The museum is composed of a "Static Section" tracing the history of the Ontario Regiment and a Vehicle Section with more than 100 operational military vehicles. The Vehicle Section, containing jeeps, trucks, tanks and other military vehicles is the largest collection in North America. The museum is located on the South Field of the Oshawa Municipal Airport, 1000 Stevenson Rd N, Oshawa, Ontario (50 km east of Toronto, Ontario).

The Oshawa Military and Industrial Museum is an accredited Canadian Forces Museum located in Oshawa, Ontario, Canada. The museum, more commonly known as The Ontario Regiment (RCAC) "Ferret Club", was founded in Oshawa in 1980 and has grown to become the Historic Vehicle Section of the Ontario Regiment Museum. The museum's maintainers are a group of volunteer military vehicle enthusiasts. The group includes civilians as well as several current and former members of the RCAC, and other units of the Canadian Army and the Canadian Armed Forces (CAF).

Oshawa Executive Airport (IATA: YOO, ICAO: CYOO) is a municipal airport adjacent to the north end of the city of Oshawa, Ontario, Canada. It is the busiest general aviation airport without scheduled airline service in the Greater Toronto Area by aircraft movements and one of the busiest general aviation only airports in Canada. It includes two paved runways and instrument approaches. From 2002 to 2008, Oshawa hosted the annual Canadian Aviation Expo, Canada's largest annual aviation event, before the expo moved to John C. Munro Hamilton International Airport in 2009. Oshawa Airport now hosts the Girls Take Flight event that takes place every spring.The airport is classified as an airport of entry by Nav Canada and is staffed on call by the Canada Border Services Agency. CBSA officers at this airport can handle aircraft with no more than 50 passengers. The officers also provide weekday call out for general aviation arriving from outside Canada to Buttonville Municipal Airport in Markham, Ontario.

Whitby—Oshawa was a provincial electoral district in Ontario, Canada, that was represented in the Legislative Assembly of Ontario from the 2007 provincial election until 2018. The riding was adjusted by the 2015 Representation Act for the 2018 provincial election, losing some territory to the district of Oshawa, and replaced as the district of Whitby.

CKGE-FM is a Canadian radio station, broadcasting at 94.9 FM from Oshawa, Ontario. The station broadcasts an active rock format under the brand name 94.9 The Rock.

The Oshawa Civic Auditorium was an indoor arena in Oshawa, Ontario, Canada. It operated from 1964 to 2006, and was primarily used as an ice hockey venue for the Oshawa Generals. The auditorium was built as a replacement to the Hambly Arena, which burned down in 1953. The auditorium was part of a larger multi-purpose recreational complex.

Oshawa Centre is a two-storey shopping mall located in the city of Oshawa, Ontario, Canada. Located at King Street and Stevenson Road, it is the largest mall in Durham Region and the largest in Ontario east of Toronto with over 230 retail stores and public services. Its Executive Office complex includes the Ministry of Health of Ontario. The Oshawa Centre is owned and managed by Ivanhoé Cambridge. One of Durham Region Transit's bus terminals is located outside of the mall's south-east entrance, from which there are regular bus services to Oshawa GO Station, Whitby GO Station, and the campuses of Durham College, among other destinations.

Lakeridge Health is a health system and hospital network serving Durham Region, Ontario in the eastern part of the Greater Toronto Area. It operates four acute hospitals with emergency departments (Lakeridge Health Bowmanville, Lakeridge Health Oshawa, Lakeridge Health Port Perry, Lakeridge Health Ajax and Pickering), one specialty hospital with a regional mandate (Lakeridge Health Whitby) and a variety of offsite locations. Lakeridge Health is part of the Central East Local Health Integration Network (CE LHIN).

Lakeridge Health Oshawa, formerly Oshawa General Hospital, is a hospital located in Oshawa, Ontario, Canada. It was founded in August 1910 in a two-story building, and major additions were made in the 1920s (surgical and maternity wings). "G" Wing opened in 1970 on the occasion of the hospital's 60th anniversary. In 1998 the hospital, along with Memorial Hospital Bowmanville, North Durham Health Services, and Whitby General Hospital were placed under the administration of the Lakeridge Health Corporation. The hospital was renamed and, with the closing of Whitby General as a full-service hospital, was given health responsibility over both Oshawa and Whitby. The hospital is now the largest in Regional Municipality of Durham, with 363 beds, and 75,000 emergency visits and 27,600 surgeries a year (information from 2006/2007). A new north wing opened in January 2007, and further expansion is expected to increase total capacity to 637 beds by 2011.

Whitby—Oshawa was a federal electoral district in Ontario, Canada, that has been represented in the House of Commons of Canada since 2004. Following the 2012 federal electoral boundaries redistribution, the bulk of the district became part of the new Whitby district, while parts of it will be transferred to Oshawa and Durham.