Raja Rajendra Mullick (Bengali: রাজেন্দ্র মল্লিক; 24 June 1819 – 1887) was an Indian art lover and philanthropist.

He was the scion of Mullick family of Chorbagan and built the Marble Palace of Kolkata.

At the age of three, Nilmani died, leaving behind Rajendra to inherit all his wealth.

In 1866, he opened a relief centre in Kolkata to serve the famine-stricken people of Orissa who had taken shelter in the city.

When the Zoological Gardens was set up in 1876, he donated many birds and animals from his personal collection.