Romanas Plečkaitis (11 August 1933 – 17 August 2009, Vilnius, Lithuania) was a Lithuanian philosopher, logic, philosophy, history researcher, Doctor habil, Professor. Romanas Plečkaitis translated the main Immanuel Kant works into Lithuanian language, wrote the history of Lithuanian philosophy and logic issues, published over 300 publications in various academic, has developed 27 PhDs.