South African Rob Walter has been appointed head coach of the Otago Volts for the next two seasons.

He takes over the side from current coach Nathan King, who resigned midway through his contract following a disappointing season.

The move will see Walter leave his job as coach of top-level South African cricket franchise the Titans.

Otago Cricket chief executive Mike Coggan says he's pleased to have secured Walter after a worldwide recruitment search.

Walter will begin his employment with Otago Cricket at the start of September.