We are the nation's most effective animal protection and animal welfare organization working to end suffering for all animals.

Happy woman and her dog

With your help, we stand up and fight for all animals who are suffering. Learn more about how you can get involved.

An HSUS volunteer cleans up in an animal shelter while one of the shelter dogs watches
Meredith Lee

National Volunteer Week
April 21-27

Thank you to our 1,904 volunteers who fought for all animals for 70,918 hours in 2023!