A South African fisherman has shocked himself - and the internet - by snaring a mulloway as big as himself.

A post appeared on the Cape Town Rock and Surf Fishing Facebook page in mid-June depicting the 60-kilogram fish reeled in by Renier.

Renier struggles with is giant catch. Credit:Facebook

Photos show Renier struggling to hold up a fish that matches him for height and the post has been shared nearly 7000 times and attracted more than 4000 comments.

The phenomenal catch came at Mossel Bay, in the Southern Cape area.