The 19-year-old died at the scene on the old N1 road, north of Drogheda, Co Louth, last night.
It is believed he was trying to cross the road when he was struck by a car at around 8pm.
The driver of the vehicle was not hurt in the collision.
The scene was preserved for a forensic examination while the victim's body was taken to Our Lady of Lourdes Hospital, where a full post-mortem examination is to be carried out.
Gardai have appealed for witnesses.
COMMENT RULES: Comments that are judged to be defamatory, abusive or in bad taste are not acceptable and contributors who consistently fall below certain criteria will be permanently blacklisted. The moderator will not enter into debate with individual contributors and the moderator’s decision is final. It is Belfast Telegraph policy to close comments on court cases, tribunals and active legal investigations. We may also close comments on articles which are being targeted for abuse. Problems with commenting? email@example.com