Phalaris was a British bred Thoroughbred racehorse, later a Leading sire in Great Britain and Ireland and a Leading broodmare sire in Great Britain & Ireland. He appears in the sireline of all racehorses which were winners of more than $10 million, as well as all yearlings that were auctioned for more than $7.5 million.

The title of champion, or leading, sire of racehorses in Great Britain and Ireland is awarded to the stallion whose offspring have won the most prize money in Britain and Ireland during the flat racing season. The current (2022) champion is Dubawi, who earned his first title after finishing runner-up multiple times.