Declan Toohey was born in Scotland in 1997 and grew up in County Kildare. In 2021 he was a winner of the IWC Novel Fair, and in 2022 he won the Maeve Binchy Travel Award. An MFA graduate of University College Dublin, he is the recipient of an Agility Award and a Literature Bursary from the Arts Council of Ireland. His first novel, Perpetual Comedown, was published by New Island Books in February 2023.

He is represented by Peter Straus at RCW.