SFSS may refer to:
- Simon Fraser Student Society, a student group at Simon Fraser University
- Semaphore Flag Signaling System, a fictional internet standard for transmitting Internet Protocol packets
- Effluent sewer, also called a solids-free sewer system (SFSS), a sewer system that treats waste in septic tanks before pumping the effluent to a central plant
This disambiguation page lists articles associated with the title SFSS.
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