Sounder (disambiguation)

Sounder may refer to:

*"Sounder", a book by William H. Armstrong
* "Sounder (film)", a film based on the novel
*Sounder, a group of wild boar, or of domestic pigs foraging in woodland (in other circumstances a group of domestic pigs is a herd).
*Sounder, a device that transmits a signal and uses the returned signal to measure characteristics of the propagation medium.
**Echo sounder, a device used to measure water depth using Sonar
**Atmospheric sounder also known as SODAR

in the Seattle area:
*Sounder Commuter Rail, a transit system serving the Puget Sound area
*Sounder, a member of the Seattle Sounders professional soccer teams

in telecommunications:
*Sounder (radio). a station identifier in a radio broadcast
*Telegraph sounder, a device for detecting operability in a telegraph