Catherine of Hungary (Hungarian: Katalin, Serbian: Каталина, romanized: Katalina; c. 1256 – after 1314) was a Queen consort of Serbia by her marriage to Stefan Dragutin.

The efforts of Catherine's grandfather, Bela IV of Hungary to secure his southern boundary while moving toward the Adriatic included establishing leaders in Srem (John Angelos) and Slavonia (Rostislav Mikhailovich) who were not only capable but also closely connected to the royal family.

It is quite reasonable that an effective way to at least neutralize Serbia under Uroš would be to connect him through dynastic marriage to Hungarian nobility, whether by diplomacy or force.

A detailed reexamination of the relations between Hungary and Serbia in the period 1240-1265, and especially around 1250, would be expected to show that the marriage of Helen of Anjou and Stephen Uros was a natural outcome of political factors.

For example, it is well known that Dragutin was given Mačva, Usora and Soli by his brother-in-law Ladislas IV of Hungary after yielding the Serbian throne to his brother Milutin in 1282.