Joseph Theodore Lewis is an American school safety advocate. Lewis started Newtown Helps Rwanda, a charity that raised money for survivors of the 1994 Rwandan genocide as well as former child soldiers in Uganda. He previously was a candidate in the 2020 elections for Connecticut state senator for the 28th district, dropping out before the August primaries to work on a national campaign. His younger brother Jesse Lewis was a victim of the 2012 Sandy Hook Elementary School shooting in Newtown, Connecticut.