Murphy has always been relatively private about his personal life, and has only occasionally offered up details about his family, and his wife Yvonne McGuinness.
McGuinness is an Irish artist whose work involves "film, performance, sculptural and textile elements, sound and writing."
Her website also says that she has an interest in "embodied experience of place and belonging by staging live, public, interventions and performances which create surreal and dynamic moments of interaction and connection to place, time and communities."
Speaking to The Guardian in 2016 ahead of "Peaky Blinders" season three, Murphy said that he met McGuinness around the time that he was starring in the "Disco Pigs" play in the 1990s.
"That time, making 'Disco Pigs,' was kind of the most important period of my life. The people I met there remain my closest friends… They shaped me in terms of my tastes, in terms of what I wanted to do with my life. And it was around the same time I met my wife," he said.
"She came on tour with us. It was so exciting, 20 years ago or whatever it was — we were all just kids, trying to find our way — but such a special, special time."
The pair got married in 2004, and have two children together.