Leigh David Miller (born August 19, 1963) is an Australian Olympic hurdler. He represented his country in the men's 400 metres hurdles at the 1988 Summer Olympics. His time was a 50.53 in the hurdles. He also competed in the Men's 4 ÃÂ 400 metres relay, where his team finished with a time of 3:05.93 in the qualifiers.
Miller finished third on two occasions in the 400 metres hurdles event at the British 1990 AAA Championships and 1991 AAA Championships.