Nicolaus Davis (or Nikolaus Davis Greek: Νικόλαος Δάβης; 1 January 1883 – 4 August 1967) was a Greek genre and landscape painter.
His parents moved to Athens where he visited the School of Arts as a guest lecturer.
Davis became member of the Muich Artist Union (Münchner Künstlergenossenschaft) and participated at the international Glaspalast exhibitions in 1918, 1919, 1922 and 1925.
Nicolaus Davis died in Ebersberg (near Munich) in 1967.
His still life paintings were more commonly made into post cards compared to his other works.