Robert Gordon was critically injured in an altercation at Stanwix Park Holiday Centre in Silloth in the early hours of Saturday.
The 47-year-old, from Kilmarnock, was taken to Cumberland Infirmary but pronounced dead on Sunday.
A man from Silloth, also 47, who was arrested on suspicion of causing grievous bodily harm with intent has been released on bail.
Cumbria Police said the incident, which happened between 01:45 and 02:45 GMT, started in the bar and involved a number of people.
A man who died after a fight at a holiday park in Cumbria has been named.