Mr Herron – a solictor currently serving as acting deputy DPP – will take over from Barra McGrory QC.
The news was announced on Friday by Attorney General for Northern Ireland, John F Larkin QC and will take effect from January 2, 2018.
Mr Larkin said he was delighted to announce the appointment.
“I have already had the pleasure of working with Stephen in his current role and in other senior roles within the PPS and I look forward to working with him as he shapes the Public Prosecution Service of the future,” Mr Larkin said.
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He added: “It is an agreeable duty to pay tribute to Barra McGrory on his retirement as Director and to thank him for generous and committed public service
in that role.”
Commenting on his appointment, Mr Herron said: “I am delighted to accept the post of Director of Public Prosecutions. I have worked in the Service for the last 15 years and it is an honour to have the opportunity to take on this role.”