But Otago right-armer Jacob Duffy is skipping the tour.
The reigning Sir Richard Hadlee Medal winner will remain in Dunedin as he and his wife await the birth of their first child.
Black Caps coach Rob Walter supported his decision.
“Jake has been hugely impressive and influential across all formats, but this is a far more important period of his life coming up and we’re fully supportive of him and his wife, Tash,’’ Walter said.
Zak Foulkes, Matt Henry, Nathan Smith and Blair Tickner have been named for both tours, while Michael Rae and the uncapped Kristian Clarke have been included for the Ireland test only, along with Ben Sears, who will also head to England as the 16th travelling reserve.
Kane Williamson has been included in the 19-strong extended squad as he looks to add to his test career runs tally of 9461, after last playing for the side in the test series against the West Indies in December.
Central Districts and former Volts all-rounder Dean Foxcroft has earned his maiden test call-up after another solid Plunket Shield season with the bat and impressive recent performances on the Black Caps’ white-ball tour of Bangladesh.
The tour begins an important period of long-form cricket for the test side, the series against England kicking off a run of 13 ICC World Test Championship matches from June until March.
The tour will be the first test involvement for Jamieson since suffering a back stress fracture in February 2024.
The 31-year-old has a sparkling test resume of 80 wickets in 19 tests at an average of 19.73.
O’Rourke’s rise has coincided with Jamieson’s time away from test cricket. The 24-year-old has claimed 39 wickets from 11 tests at an average of 24 since his debut against South Africa in February 2024.
He succumbed to a back stress fracture on the test tour to Zimbabwe last July and spent eight months on the sidelines before returning to the Black Caps just-completed white-ball tour of Bangladesh.
Henry, Foulkes, Jamieson, Rachin Ravindra and Glenn Phillips will join the squad once their respective stints in the Indian Premier League conclude.
All-rounder Michael Bracewell has expressed his desire to step back from test cricket and focus his time on his young family and limited-overs cricket.
The 35-year-old was therefore not available for selection for these tours, but Walter said Bracewell remained an important part of the Black Caps white-ball programme.
In-form Canterbury red-ball captain Henry Nicholls has earned a recall for both tours, while Will Young is included for the Ireland test only.
Daryl Mitchell is on track to be fully fit for the tour, but Mitchell Santner has been ruled out for now with a shoulder injury.
Tom Blundell has been selected as the only specialist wicket-keeper in the squad, with captain Tom Latham his immediate back-up if required. — Allied Media
Black Caps tour of Ireland and England
Test squad
Tom Latham (captain), Tom Blundell, Kristian Clarke, Devon Conway, Zak Foulkes, Dean Foxcroft, Matt Henry, Kyle Jamieson, Daryl Mitchell, Henry Nicholls, Will O’Rourke, Glenn Phillips, Michael Rae,
Rachin Ravindra, Ben Sears, Nathan Smith, Blair Tickner, Kane Williamson, Will Young.
Tour schedule
May 27-30: Ireland, Stormont, Belfast;
June 4-8: England, Lord’s, London
June 17-21: England, The Oval, London;
June 25-29: England, Trent Bridge, Nottingham
