The Portuguese Greyhound Incident was a dog attack that took place on September 17, 2004 during a Greyhound race at Estadia du Luz in Lisbon, Portugal. Approximately 13 seconds into the race, the two leading dogs leaped into the stands and began attacking spectators. Four people were taken to hospital as a result of the attack, with an additional six receiving vaccines to guard against infection. Of the four people who were taken to hospital, three were released later in the week. One, the then 46-year-old Vadonia du Fatina, experienced complications, and eventually needed surgery.
The two dogs, who were owned by American businessman Clark Ford, were euthanised several days after the race.
The incident prompted public concern over dog racing in Portugal, and eventually resulted in a ban in Lisbon.