A ccomparative study of Protozoan Zooplankton diversity in lentic waterbodies of Maddur, Malavalli and Marehalli was conducted from June 2020 to May 2021. Sixteen species of protozoans were recorded in Malavalli lake in summer. And least number of protozoans were recorded in Maddur lake during winter season. Malavalli lake was rich in abundance of protozoans. Malavalli lake is more eutrophic in nature compare to Maddur and Marehalli lakes. Water in Malavalli lake is more stagnant and many aquatic weeds abundantly grown which supports the growth of zooplanktons. Whereas in Maddur and Marehalli lakes water is of lotic in nature which is subjected to frequent flow and does not support abundant growth of aquatic weeds and phytoplanktons.