From Wikipedia, "In professional wrestling, a ten-bell salute is given to honor a wrestler that has died, especially when that wrestler is a current member of the promotion or a distinguished former member of the promotion. It is the professional wrestling equivalent of a 21 gun salute."

It is typically given at the beginning of a card, with the current members of the promotion either in the entranceway, in the ring or around the ring. Both wrestlers and audience observe a moment of silence during the tolling of the bell."

It stated that Andre The Giant who passed in 1993 was the first to receive the 10 bell salute.