An economist has said Kiwis could see less British tourists coming to New Zealand if Britain decides to leave the European Union.

The United Kingdom will vote in June on whether it remains in the EU after allegations from some lobby groups its better off without the partnership.

BNZ Currency specialist Jason Wong said the British Pound has already begun to react against a possible exit from the EU.

He said if New Zealand becomes a much more expensive place for British tourism, then we will see visitor numbers drop off.