The trio have proven their fitness for their respective Indian Premier League sides to make the 15-man Black Caps side, named today.
"It's been good to see all three back on the park and bowling; together they add a lot of experience to our squad," NZ coach Mike Hesson said.
The squad features five specialist batsmen, four pace bowlers, three seam-bowling all-rounders, two-spinners and a wicket-keeper - with Tom Latham the back-up gloveman.
The Black Caps will play an ODI tri-series in Ireland ahead of the trophy tournament.
New Zealand's first ICC Champions Trophy tournament match is against India at the Oval on May 28.
ICC Champions Trophy squad: Kane Williamson (c), Corey Anderson, Trent Boult, Neil Broom, Colin de Grandhomme, Martin Guptill, Tom Latham, Mitchell McClenaghan, Adam Milne, Jimmy Neesham, Jeetan Patel, Luke Ronchi, Mitchell Santner, Tim Southee, Ross Taylor.
