Guilbert and Betelle was an architecture firm formed as a partnership of Ernest F. Guilbert and James Oscar Betelle. The firm specialized in design of schools on the East Coast of the United States, with an emphasis on the "Collegiate Gothic" style.

Collegiate Gothic is an architectural style subgenre of Gothic Revival architecture, popular in the late-19th and early-20th centuries for college and high school buildings in the United States and Canada, and to a certain extent Europe. A form of historicist architecture, it took its inspiration from English Tudor and Gothic buildings. It has returned in the 21st century in the form of prominent new buildings at schools and universities including Cornell, Princeton, Vanderbilt, Washington University, and Yale.