What is the name of the horse Tony Soprano takes an interest in?

The horse Tony Soprano takes an interest in is Pie-O-My. The racehorse belongs to Ralph Cifaretto and becomes central to the fourth-season episode “Pie-O-My,” which originally aired on October 13, 2002.

Pie-O-My initially matters to Ralph as a source of gambling income, but Tony becomes emotionally attached after seeing the horse’s vulnerability and potential. When Pie-O-My becomes seriously ill, Tony pays the veterinarian’s bill after Ralph refuses to do so, then stays with the horse in the stable.

The horse later dies in a stable fire. Tony suspects Ralph may have caused the fire to collect a $200,000 insurance payout, supposedly to help pay for his injured son Justin’s medical care. Their disagreement over the horse contributes directly to the violent confrontation that ends Ralph’s story.

The name is also the episode title and a play on Py-O-My, a defunct baking-mix brand. Seabiscuit, one of the wrong choices, is mentioned in the episode but is not Tony’s horse.