Dino Beganovic will drive Lewis Hamilton's car during Friday's opening practice ahead of the Barcelona-Catalunya GP on Sunday.
"I am incredibly happy for this opportunity to test this year's F1 car, the SF-26, and to experience the new regulations in Formula 1 for the first time," Dino Beganovic said in a press release.
"It's great to have this chance again."
The 22-year-old drove in F1 practice in Bahrain and Austria last year.
The Swede will have a hectic Friday as he will also practice and qualify in his F2 car ahead of this weekend's two races.
