Spay Day is annual campaign of The Humane Society of the United States and Humane Society International to inspire people to save animal lives by spaying or neutering pets and feral cats.


Officially the last Tuesday of February, Spay Day includes events and activities taking place throughout February across the United States and U.S. territories, and around the world.

Get involved with Spay Day »

Outside the U.S.? Check out Spay Day International »

Questions? Contact us


Participate in Spay Day

Join us in taking part in the 16th annual Spay Day: Tuesday, Feb. 23, 2010, with events and activities throughout February.

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