Haas will hand Formula 2 racer Louis Deletraz his first Formula 1 run in the post-season test in Abu Dhabi later this month.
The Swiss racer, son of former F1 driver Jean-Denis, will pilot the team's current-spec VF-18 on the second day of the three-day test - which is run by tyre supplier Pirelli.
"I'm naturally very excited to make my Formula 1 debut testing in Abu Dhabi," Deletraz said.
"I'm grateful to both Gene Haas and Gunther Steiner for giving me the opportunity to test with Haas F1 team.
"It's the perfect way to end my 2018 season, one in which I've continued to develop and showcase my credentials."
The 2015 champion in Formula Renault 2.0's Northern European Cup, as well as runner-up in the two-litre Eurocup that year and in the now-defunct FR3.5 a year later, Deletraz is currently contesting his second full season in F2.
The 21-year-old, who was formerly part of Renault's young driver programme, has been racing for the Ferrari Driver Academy-affiliated Charouz team this campaign and sits 11th in the standings after scoring two reverse-grid podiums.
"This is a good opportunity for Louis Deletraz to progress his racing career and it's always a special occasion earning your debut in a Formula 1 car," said team principal Steiner.
"He has enjoyed a solid 2018 season competing in the FIA Formula 2 Championship, amidst possibly one of the strongest fields in recent years."
Deletraz will be embedded with the team for the two final rounds of the F1 season in Brazil and Abu Dhabi.
The team also has F2 racer Arjun Maini and his former Trident team-mate Santino Ferrucci on its books as development drivers.
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