There are several well-known bodies of this name (some independent institutions, others constituent colleges of a larger University); among the most well-known are:

• Trinity College, Cambridge (one of the constituent colleges of the University of Cambridge in the United Kingdom)
• Trinity College, Dublin (sole constituent college of the University of Dublin)
• Trinity College, Oxford (one of the constituent colleges of the University of Oxford in the United Kingdom)
• Trinity College (Carmarthen)
• Trinity College (Connecticut)
• Trinity College (University of Melbourne)
• Trinity College (Florida)
• Trinity College (Vermont)
• Trinity College and Seminary , Newburgh, Indiana
• The University of Trinity College, Toronto (one of the constituent colleges of the University of Toronto in Canada)
• Trinity College School , Port Hope, Ontario
• Trinity College, Glenalmond
• Until 1924, Duke University was known as Trinity College. Today, Duke's undergraduate liberal arts constituent college is named the Trinity College of Arts and Sciences.
• Trinity Christian College in Illinois.
• Until 2004, Trinity University (a Catholic women's college in Washington, DC) was known as Trinity College.
• Trinity University is located in San Antonio, Texas.
• Trinity College and University located in (Malaga, Spain) is widely considered to be a diploma mill.