MTG was also a finalist in two other awards - best exhibition over $20,000 for Whetu Tirikatene-Sullivan - Travel in Style and Most Innovative use of Te Reo Maori also for Whetu Tirikatene-Sullivan - Travel in Style.
Napier Mayor Bill Dalton said it was great to see MTG acknowledged once again by its industry peers.
"It's a fantastic institution which is really hitting its stride."
Curator of Dr Felkin and the Forerunners, Georgina White, said she was grateful to the Havelock North community. "They were so generous with their stories and objects, thereby enriching the exhibition and accompanying essay," she said.
As a result of the popularity of the exhibition, Ms White was now writing a book about Dr Felkin, to be published by Awa Press.
Museums Aotearoa executive director Phillipa Tocker said this year's awards were better than ever.
"The number of entries and their standard just keeps going up - with the bar getting higher every year, the awards are becoming even more inspirational."