| 释义 |
USRA may refer to: - Undergraduate Student Research Award of the Natural Sciences and Engineering Research Council (NSERC USRA), a prestigious research award for top Canadian undergraduate researchers
- União dos Sindicatos Revolucionarios de Angola (Union of Revolutionary Trade Unions of Angola)
- United Slot Racers Association, a slot racing organizations
- United States Racquetball Association, former name of USA Racquetball
- United States Railroad Administration (1917-1920), the nationalized rail system during World War I
- USRA standard locomotives built by this administration
- United States Railway Association (1974-1987), the corporation that oversaw the creation of Conrail
- Universities Space Research Association, a Washington, D.C. based nonprofit corporation under the auspices of the National Academy of Sciences
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