Simon Rowlands will take up the reins at the course close to Llanelli in November.
36-year-old Rowlands, from Bargoed, is currently the Catering Manager at Chepstow Racecourse, the sister track to Ffos Las.
His previous roles have included various catering and hospitality managerial roles in the leisure and sports industry, including the BBC.
Both courses are owned by the Arena Racing Company (ARC), operators of 16 horse racing venues in the UK as well as hotels and greyhound tracks.
ARC purchased Ffos Las from South Wales businessman Dai Walters in May.
Rowlands will head up a management team focused on increasing attendances, hospitality, on-course branding and non-racing events such as concerts and conferences at the West Wales venue.
He said: ”I am delighted to be responsible for driving this exciting business forward. There are 19 race meetings a year at Ffos Las as well as plenty of opportunities for other events.
“I am looking forward to building business partnerships across the region and attracting more people to the venue. We will also be working closely with Chepstow to encourage more people in Wales to come horse racing.”
Phil Bell, Executive Director of Chepstow and Ffos Las Racecourses, said: “Simon is ambitious, extremely pro-active and hard working. He is just what we need at Ffos Las Racecourse in terms of leading the management team and driving the business forward.”