April Giangeruso was born in Washington, D.C. and began her early training in her hometown of Ellicott City, Maryland. At age nine, she received a full scholarship to the Kirov Academy of Ballet where she studied from 2001-2005 under the direction of Ludmila Morkovina. She also studied with Valentina Kozlova and, at 15 years old, was the youngest female finalist at the 2006 USA International Ballet Competition in Jackson, Mississippi. She has performed the Bluebird pas de deux from The Sleeping Beauty, the grand pas de deux from The Nutcracker and Raymonda, and the Medora and the Slave pas de deux from Le Corsaire.
She has attended the ABT Summer Intensives as a National Training Scholar, and in September 2007 she joined the Jacqueline Kennedy Onassis School at ABT. In December 2007 she joined ABT II where her repertoire included leading roles in Allegro Brillante and Interplay, Azure Barton's Barbara, Tudor's Continuo, Raymonda and the pas de deux from Swan Lake, Act II. She created the leading role in Jodie Gates' A Taste of Sweet Velvet.
Giangeruso joined the main Company as an apprentice in January 2010 and the corps de ballet in June 2010. Her repertory includes one of the Nutcracker's sisters in Alexei Ratmansky's The Nutcracker and a role in Private Light, as well as roles in all the Company's full-length ballets.