Mileikowsky (Russian: Милейковский, feminine Милейковская; Polish: Milejkowski, feminine Milejkowska; Hebrew: מילייקובסקי), sometimes Milikowsky or Milikovsky (Hebrew: מיליקובסקי), is an Ashkenazi Jewish surname, related to various villages named Milejków/Mileykovo, Milejki/Milyeyki, Mileikiai, or similarly, in the Russian Empire.
Notable people with the surname include: