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