Hurkacz and Pavić saw off Germany's Tim Pütz and New Zealand's Michael Venus 7-6, 7-6 in the championship match on Sunday to claim their first title together.
The win marked the fourth ATP doubles title for the Polish player.
Hurkacz in April won the men's doubles title at the Miami Open tournament in the US state of Florida, together with American John Isner.
(gs)
Source: PAP