Hampshire Hog Yard was a yard in Bloomsbury, in the modern borough of Camden (London, England). It seems to be now lost.

In London Labour and the London Poor edition: 

Phase 1

A Visit to the Rookery of St. Giles and its Neighbourhood. (Volume 4): "Being desirous of having a more thorough knowledge of the people residing in the rookery of St. Giles, we visited it with Mr. Hunt, inspector of police. We first went to a lodging-house in George Street, Oxford Street, called the Hampshire-Hog Yard."