Research in Information Technology, a program at Carnegie Mellon University

Rochester Institute of Technology

Rit., a common abbreviation for "ritardando" in music notation, a gradual slowing of tempo.

Radiological Imaging Technology, a principle of radiology

Rit, a phonetic spelling of writ.

Rede Integrada de Transporte, a bus rapid transit system in Curitiba, Brazil

Rapid Intervention Team, also known as a the Firefighter Assist and Search Team

Rajiv Gandhi Institute of Technology

Recherche et Industrie Thérapeutiques, the former name of what is now GlaxoSmithKline Biologicals in Belgium

Riverina Institute of TAFE, Australia