John Struan Robertson QSO (born 6 December 1951)[1] is a New Zealand politician and company director.

After a career as a chartered accountant, Robertson was elected to the New Zealand House of Representatives 1990 as the Member of Parliament for Papakura.

[2] Robertson's Papakura electorate was disestablished before the 1996 election; he stood instead for Hunua where he finished second to National's Warren Kyd.

[6] In August 2012, the elected councillors of Kaipara District Council were replaced with a four-member commission as a result of serious governance and financial failures.

[9][10] Robertson contested and won the Waitomo district mayoralty in the 2019 local elections, defeating incumbent Brian Hanna.