Examples relate to dynamic allocation of hash table resources. In one example, a computing device may: receive, from a particular lookup function of a plurality of lookup functions, a lookup request; identify, based on the particular lookup function, a logical hash table that corresponds to the particular lookup function, the logical hash table mapping to at least one physical hash table resource; obtain, from one of the at least one physical hash table resource, response data that is responsive to the lookup request; and provide the response data to the particular lookup function.