|Died||date of death unknown|
|Language||Middle High German|
|Manuscript(s)||MS 3227a (ca. 1389)
MS E.1939.65.341 (1508)
Nicklass Preußen (Niclas prewßen, Nicklass prewsñ) was a 14th century German fencing master. His name seems to indicate that he was a Prussian, but nothing is known about this master's life. He is not mentioned by Paulus Kal as being a member of the Society of Liechtenauer, and his exact relation to the high master is uncertain.
Along with Andres Juden, Jobs von der Nyssen, and "The Priest" Hans Döbringer, Preußen is one of the four masters credited with writing the addendum to Johannes Liechtenauer's Bloßfechten found in the MS 3227a and the Glasgow Fechtbuch.