Black Caps selector Sam Wells said they were lucky to have a player of Wagner’s calibre to call on.
“It’ll be great to have Neil’s skill and experience on the tour of Bangladesh,” he said.
“His record speaks for itself and we all know what a great competitor he is.
“He’s played plenty of cricket in the sub-continent and I know he’s really excited by the challenge ahead.”
Wagner played starring roles at the end of the Black Caps home Test summer earlier this year before he was sidelined by a hamstring injury.
His day five heroics with the ball saw him claim the final wicket to clinch a dramatic one-run victory over England in Wellington in late February, before he defied a torn-hamstring to run a final-ball bye with Kane Williamson to down Sri Lanka in Christchurch.
The New Zealand-based Black Caps Test players depart for Bangladesh on Tuesday November 21.
The majority of the squad who also featured at the ICC Cricket World Cup in India are currently in Dubai recovering before they relocate to Sylhet next week.
The first Test starts on November 28 with the second and final Test in Dhaka starting December 6.
The Black Caps and Bangladesh then open the men’s International home summer in New Zealand later in December with two white-ball series leading into Christmas and New Year.
Black Caps Test squad v Bangladesh
Tim Southee (c)
Tom Blundell (wk)
Devon Conway
Kyle Jamieson
Tom Latham
Daryl Mitchell
Henry Nicholls
Ajaz Patel
Glenn Phillips
Rachin Ravindra
Mitchell Santner
Ish Sodhi
Neil Wagner
Kane Williamson
Will Young
Bangladesh v Black Caps Test series
1st Test – 28 November – 2 December - Sylhet International Cricket Stadium, Sylhet
2nd Test – 6-10 December - Sher-e-Bangla National Cricket Stadium, Dhaka