Bradford coroners are appealing for relatives of Peter Joseph Kilkenny to come forward.
Mr Kilkenny, 58, of Girlington Road, Bradford, was found dead at his home address on Monday, June 3.
He died of natural causes.
It is thought Mr Kilkenny has a son and a brother living in the Bradford area.
Any relatives or anyone who knows of his relatives is asked to contact Coroners Officer Chris Dalby on 01274 475246.