Petrus "Piet" Adrianus Wernink (1 April 1895 in Oudshoorn – 29 November 1971, Wassenaar) was a sailor from the Netherlands, who represented his native country at the 1920 Summer Olympics in Ostend, Belgium.
With helmsman Joop Carp and fellow crew member Berend Carp, sailing the Dutch boat Oranje, Wernink took the Gold in the 6.5 Metre.