Jan Ludwik Plater (died 1736) was a voivode of Inflanty and a Polish writer.
He was born c. 1690 as a son of voivode of Inflany Jan Andrzej Plater and Ludwika Maria née Grothus.
He was also considered a talented writer, although of his supposedly enormous output only "Prayers to the Holy Trinity" have survived.
He acquired or was bestowed with many estates, including Frejtagshof (Kombulmujża, now Kombuļi [la]), and Krāslava together with the town.
They had a number of children: Józefa, Konstancja, Ferdynand, Kazimierz, Ignacy, Joanna Magdalena, Maria Alojza, Magdalena, and Konstanty Ludwik, voivode of Mstislaw nad Marshal of the Lithuanian Tribunal.