Rupert Hollaus (4 September 1931 in Traisen - 11 September 1954) was an Austrian Grand Prix motorcycle road racer who competed for the NSU factory racing team. He is the only Austrian to win a road racing World Championship.

Hollaus began his Grand Prix career in the 1953 season. In the 1954 season, he dominated the 125cc class by winning the first four Grands Prix. His victory at the 1954 Isle of Man TT was notable because he was one of only seven riders to have won an Isle of Man TT race in their first attempt. Due to the circuit's 37.7 mile length, it usually takes competitors two or three attempts before they learn its nuances. Later that same year, he was killed in practice for the Italian Grand Prix at Monza. Hollaus became the first posthumous World Champion in 1954, in the 125cc class and was runner up to his NSU team-mate, Werner Haas, in the 250cc class.

On February 23rd, 1955, he was elected as "Austrian Sportspersonality of the year 1954" (posthum).

(Races in italics indicate fastest lap)

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