Ronald "Ron" Siler Jr. (born April 8, 1980) is an American former amateur boxer who competed for the United States at the 2004 Olympics.

He grew up without his mother after she joined the Army when he was an infant and lost contact and at times without his troubled father Ron Sr, too.

Until 2001 he was campaigning as a light flyweight, he won the United States championships in 1998 beating Jose Navarro, 1998 and 1999 he lost five times to his nemesis future world champion Brian Viloria and at the Panam games in the first round to Maikro Romero.

He came back to win the National Golden Gloves in 2000, at the Olympic trials however he lost to Nonito Donaire and his brother Glenn Donaire[1] After Viloiria had turned pro he had his best year in 2001 when won the US championships again and a Bronze medal at the world championships where he lost to Yan Bartelemí At the Goodwill Games he defeated Romanian star Marian Velicu 17-6, in semis and Russian southpaw Sergey Kazakov, 17-9, in the final.

Results were: Siler made his long-awaited pro debut in January 2010 with a TKO win over Almensor De La Cruz.

In 2002 he was arrested after he was caught driving a stolen 2000 Chevy Tahoe.// While out on bond for that charge, Siler and friends stole equipment from construction workers.

Hamilton County Common Pleas Court Judge Norbert Nadel placed him on probation in 2003 after national trainer Emanuel Steward vouched for Siler, calling him the top prospect for the 2004 Olympics.

Hamilton County Municipal Judge Brad Greenberg set bond at $7,000 and ordered him to return to court on October 22 with a lawyer.