Peter Coonan (born 1984) is an Irish actor, notable for his roles in King of the Travellers (2012), and Love/Hate (2011–2014), for which he won Best Actor in a Supporting Role – Television at the 11th Irish Film & Television Awards. Other credits include Penance (2018), Dublin Murders (2019), Arracht (2020), The Alienist: Angel of Darkness (2020), Cold Courage (2020), Doineann (2021), Peaky Blinders (2022), and Bad Sisters (2022).

His first notable role was in 2011, when he played Dave 'Dots' Fennel in the Irish crime film Between the Canals. and as Mickey Moorehouse in King of the Travellers (2012). He played a main role as Fran Cooney in the RTÉ One series Love/Hate (2011–2014), for which he won Best Actor in a Supporting Role – Television at the 11th Irish Film & Television Awards.

In 2022 he appeared as Connor Dunn in Peaky Blinders, and as Ben in Bad Sisters.

In May 2014, Coonan's girlfriend, Kim O'Driscoll, gave birth to their baby girl, Beth, at the National Maternity Hospital, Dublin.

They became engaged in 2015. In 2017 their daughter Katie was born.