Azertyuiop was a French-bred National Hunt racehorse, who specialised in two-mile steeplechases. He won the Arkle Challenge Trophy at the 2003 Cheltenham Festival, going on to win the Queen Mother Champion Chase the following year, and then coming home third in the same race in 2005. He was trained by Paul Nicholls and was ridden by Ruby Walsh in every chase bar one. He is owned by John Hales who also owned One Man, who won the 1998 Queen Mother Champion Chase and the 1995 and 1996 King George VI Chase. His name derives from the top row of letters on the French keyboard layout.