Castleton University

Castleton University
Former names	List Rutland County Grammar School (1787–1828); Vermont Classical High School (1828–1830); Castleton Seminary (1830–1876); State Normal School at Castleton (1867–1920); Castleton Normal School (1920–1947); Castleton Teachers College (1947–1962); Castleton State College (1962–2015); Castleton University (2015–2023); ;
Successor	Vermont State University
Type	Public university
Active	1787–July 2023
Accreditation	NECHE
Academic affiliations	Vermont State Colleges
Endowment	$7.86 million
Chancellor	Sophie Zdatny
President	Mike Smith
Academic staff	80
Administrative staff	200
Students	2,399 (2020)
Undergraduates	1,823 (2020)
Postgraduates	576 (2020)
Location	Castleton, Vermont, U.S.; 43°36′25″N 73°10′48″W / 43.607°N 73.180°W
Campus	Rural college town, 165 acres (67 ha)
Colors	Castleton green, dark gray and white;
Nickname	Spartans
Sporting affiliations	NCAA Division III – Little East Conference
Mascot	Sparty

Castleton University was a public university in Castleton, Vermont.

In July 2023, Castleton University merged with Northern Vermont University and Vermont Technical College to form Vermont State University, of which it now serves as a branch campus.

At the time of its closure, Castleton had an enrollment of 2000 students and offered more than 30 undergraduate programs, as well as master's degrees. It was accredited by the New England Commission of Higher Education.