It will be held after 11am Mass in St Michan’s Church in Dublin city centre.
The 24 year old was shot dead last Thursday in broad daylight outside Noctor’s pub on Sheriff Street.
Gardai believe an associate of a local drug gang had been the intended target for the shooting and that Mr O’Rourke was killed in a case of mistaken identity.
Thousands of euros have been raised via a GoFundMe page to help pay for his funeral and relieve the burden carried by his family.
