KSR

KSR may refer to:

• Kam Sheung Road station, Hong Kong; MTR station code
• Kendall Square Research, former supercomputer company, Cambridge, Massachusetts, US
• Keyboard Send Receive, a type of teleprinter made by Teletype Corporation
• KSR v. Teleflex, a US patent lawsuit
• Katahdin Scout Reservation, a BSA camp in Maine, US
• King Shaka Regiment, an infantry regiment of the South African Army
• Korean State Railway, North Korea state railways
• KSR1 (kinase suppressor of Ras 1), an enzyme and gene
• Kim Stanley Robinson, science fiction writer
• Kuranda Scenic Railway, a tourist railway between Kuranda and Cairns, Queensland, Australia