Tuivasa-Sheck scooped the prize, which is awarded to the best international player of the year, ahead of Tonga prop Siosiua Taukeiaho and New Zealand team-mate Jared Waerea-Hargreaves.
The 26-year-old returned from a 12-month international absence to help his country defeat Tonga 34-14 in the Oceania Cup Test and also featured in a 2-0 series triumph over Great Britain.
He also ran 167 metres and set up his team's only try in the 26-4 defeat to Australia.
Congratulations Roger pic.twitter.com/E4XNyVpvLg
— NRL (@NRL) November 17, 2019
"Putting on the black and white jersey and representing my country is always a privilege and winning this Golden Boot award is a huge honour," said Tuivasa-Sheck.
"Thank you to the IRL, NZRL and, of course, my family, as without their love and support, none of this would be possible.
"This year's campaign has been one to remember, and although being away from my family was difficult, this makes it all worth it, this award is for them."
Australia star Jessica Sergis enhanced her standing as one of the best in the world by taking home the women's Golden Boot.
Photo Getty Images Caption: Roger Tuivasa-Sheck of New Zealand