The midfielder has spent this past season out on loan at Peterborough United, where he has largely impressed with several fine performances.
They caught they eye of Norway boss Per Matias Hogbo, who named him in his squad for their recent set of friendlies.
He handed the midfielder his debut in the clash with Iceland in Oslo on Wednesday, bringing him on as a late substitute in the eventual 3-2 win.
And Samuelsen was clearly pleased to get that first game out of the way, saying he can playing with more confidence in the national side in future.
“It's good to get my debut done and out of the way,” he told whufc.com.
“It introduced me to the audience and allowed me to become familiar with the national team set-up and my teammates. I can play the next game with more confidence now.”
Samuelsen will now be eyeing a place in the West Ham first-team in future after a decent year for him.
He certainly seems to be under the right manager to make his breakthrough, with Slaven Bilic appearing to be keen to hand young players their chance.
Reece Oxford was given that opportunity to impress earlier in the campaign, and Samuelsen will be hoping he can follow in his footsteps in the near future.