The New Zealand-born film professional already has strong connections with the Netherlands.
Rabarts arrival comes as the festival gears up to mark the 25th anniversary of the Rotterdam Lab in 2025.
IFFR will also feature an industry day dedicated to the Dutch film ecosystem.
Marten Rabarts in Cannes with Canadian film industry exec Michele MaheuxGetty Images
Another key focus will be the Darkroom, IFFR Pros program of work-in-progress screenings that takes place during CineMart.
The projects presented are either supported by the Hubert Bals Fund or formerly presented at CineMart.
His film credits include Jennifer KentsThe Babadook, Edina Pintilies Berlinale Golden Bear-winningTouch Me Notand Ritesh BatrasThe Lunchbox.
