New Zealand legend Brendon McCullum has been appointed England's Test head coach.

The 40-year-old was confirmed on Thursday as Chris Silverwood's successor and will take up his first coaching role at international level.

Former Black Caps captain McCullum had been considered a strong candidate to coach England's white-ball teams, having been employed by Indian Premier League franchise Kolkata Knight Riders and Caribbean Premier League team Trinbago Knight Riders.

Rob Key decided to bring in separate Test and white-ball head coaches after he was appointed as managing director of England men's cricket last month.

Key led the interviews for both roles this week, and it is former wicketkeeper-batter McCullum who has been given the opportunity to turn England's fortunes around in the longest format under new skipper Ben Stokes.

McCullum said: "I'd like to say how pleased I am to be given this opportunity to positively contribute to England's Test cricket set-up and move the team forward into a more successful era.

"In taking this role on, I am acutely aware of the significant challenges the team faces at present, and I strongly believe in my ability to help the team emerge as a stronger force once we've confronted them head-on.

"I've enjoyed several robust conversations with Rob Key about the direction of travel for the team and have found his enthusiasm contagious. I'm no stranger to bringing about change within a team environment, and I can't wait to get started.

"Ben Stokes is the perfect character to inspire change around him, and I look forward to working closely with him to build a successful unit around us."