8H or 8-H can refer to:

GCR Class 8H, a class of 0-8-4T steam tank locomotives Studio 8H, NBC studio in the Comcast Building where Saturday Night Live is filmed 8H, a designation for the West Virginia-Western Maryland Synod SCELBI-8H, a hardware model sold with SCELBI Typ 8H, a model of Audi A4 HJ-8H, a model of HJ-8 anti-tank missile IATA code for Highland Airways former IATA code for Harbour Air recalled IATA code for Equaflight Service

See also H8 (disambiguation)