Keiron O'Connor was born in Surrey, England and studied design photography at The Arts Institute Bournemouth. Following studies at the institute, he moved to London and worked at a studio where he assisted a number of fashion photographers leading to working with i-D on portraits and small projects. It was there that his photographical interest shifted toward high fashion.

Since then Keiron has shot for a number of reputable editorial clients including: i-D, Numéro, Vogue (France, Germany, American, Japan and Teen) Jalouse, L'Uomo Vogue, Details, GQ, Blast, Elle France and Numéro Tokyo.

His recent advertising clients include campaigns for DKNY, Ramosport, Roberta Di Camerino and Nave.

Keiron divides his time between New York and Paris.