Ralph Høibakk (born 14 July 1937) is a Norwegian entrepreneur.
He established the Tandberg Data company in 1978, which produced ergonomically designed laptops and keyboards.
Høibakk left the company in 1986, and started Høibakk Invest, which provides management consulting for new enterprises.
He is also a mountaineer, and has climbed the Tirich Mir, Mount Everest and Drangnag Ri mountains in Asia with Norwegian philosopher Arne Næss and Arne Næss, Jr.
Høibakk obtained a PhD in mathematics in 2017 (age 79) at the University of Tromsø.