Sinclair Community College is an urban community college located in downtown Dayton, Ohio and is the largest community college at a single location in the state of Ohio.

Sinclair had an enrollment of 25,345 students in 2009, making the main campus one of the largest (by enrollment) community college campuses in North America.

Because of special funding set up by the taxpayers of Montgomery County, the tuition of the college is the lowest in Ohio for residents of that county; the tuition necessary to complete an associate degree program can cost less than a single quarter’s tuition at other colleges.

Sinclair Community College was featured in a 2009 issue of The New York Times. The article explained how community colleges in the United States, like Sinclair, help to create jobs in an unstable economy. The article also stated that Sinclair is widely known as one of the best community colleges in the region.

Sinclair Community College is named for David A. Sinclair, a Scottish immigrant and secretary of the Dayton YMCA (1874–1902), who founded the adult training school that eventually became Sinclair College in 1948.

A community college is a type of educational institution. The term can have different meanings in different countries.

Community colleges carry on the tradition of adult education, which was established in Australia around mid 19th century when evening classes were held to help adults enhance their numeracy and literacy skills. Today, courses are designed for personal development of an individual and/or for employment outcomes. The educational program covers a variety of topics such as arts, languages, business and lifestyle; and are usually timetabled to be conducted in the evenings or weekends to accommodate people working full-time. Funding for community colleges may come from government grants and course fees; and most community colleges are not-for-profit organisations. There are community colleges located in metropolitan, regional and rural locations of Australia.

Learning offered by community colleges has changed over the years. By the 1980s many colleges had recognised a community need for computer training and since then thousands of people have been up-skilled through IT courses. The majority of colleges by the late 20th century had also become Registered Training Organisations; recognising the need to offer individuals a nurturing, non-traditional education venue to gain skills that would better prepare them for the workplace and potential job openings. Qualifications such as undergraduate degrees and higher are not offered at community colleges, though some community colleges do offer certificate courses I to IV.

Nicholas Reeder (born Nicholas Herchenroeder) (1867–1894) was a third baseman in Major League Baseball in the 19th century. He played for the Louisville Colonels of the American Association in 1891.