Rudolf II (c. 1270 – 10 May 1290), a member of the House of Habsburg, was Duke of Austria and Styria from 1282 to 1283, jointly with his elder brother Albert I, who succeeded him.

However, in the Treaty of Rheinfelden on 1 June 1283 Rudolf II had to relinquish his share in favour of his elder brother Albert.

In compensation Rudolf II was designated as future king and his father appointed him a "duke of Swabia" - more or less an honorific title, as the former stem duchy had been in long-term disarray after the last Hohenstaufen duke, the underage Conradin, was killed in 1268.

In Swabia the former counts of Habsburg only held various smaller home territories, later summed up as Further Austria, of which Rudolf II never got hold.

His brother's failure to ensure that Rudolf II would be adequately compensated for relinquishing his claim on the throne caused strife in the Habsburg dynasty, leading to the assassination of Albert I by Rudolph's son, John, in 1308.