Royal Hungary (1526 - 1699) is the name of the portion of the medieval Kingdom of Hungary where the Habsburgs are recognized as Kings of Hungary[ in the wake of the Ottoman victory at the Battle of Mohács (1526) and subsequent partition of the country.The territory of present-day Slovakia and northwestern Transdanubia are constant parts of this entity while the control is often switched in the region of northeastern Hungary between Royal Hungary and the Principality of Transylvania.

Other parts of the partitioned country are central territories that are annexed by the Ottoman Empire and the Eastern Hungarian Kingdom in the east which later becomes the Principality of Transylvania.

The term "Royal Hungary" falls into disuse after 1699, and the Habsburg Kings refer to the newly enlarged country by the more formal term "Kingdom of Hungary".