Yes, Sirius is Padfoot.
Gryffindor. Sirius Black (Padfoot) was the only member of the Black family to be placed in a house that wasn't Slytherin.
Moony is Remus Lupin- who is a werewolf Wormtail is Peter Pettigrew- who is a mouse Padfoot is Sirius Black- who is a black dog Prongs is James Potter- who is a stag
"Padfoot's" real name is Sirius Black. Another nickname he tells Harry to call him in public is "Snuffles."
He is otherwise known as Padfoot by James, Peter and Remus. His code name in the Second Wizarding War became 'Snuffles,' because 'Padfoot' was too risky (Peter would recognize this).
The history of the padfoot is described on the related link.
Sirius Black transforms into a dog using the Animagus transformation. His Animagus form is a black dog and he is known as Padfoot.
Jacob Black. Howler. Prowler. Padfoot. Remus Lupin. Fang. Fluffy. Scruffy.
Gary Oldman plays Sirius Black, otherwise known as Padfoot
Cleod is the name of the dog that plays Padfoot
Padfoot (not 'Padford') is the nickname of Harry's godfather Sirius Black, given to him because his Animagus form is a great black dog, presumably with padded feet.
The cast of Cirrus - 2010 includes: Kami Locklear as Melissa Altorro Prince Black as Altorro
Sirius Black (padfoot) Remus Lupin (moony) Peter Pettigrew (wormtail) and Harry's dad James Potter (prongs).