Eberhard Keil or Keyl dit Monsù Bernardo (1624-1687) was a Danish Baroque painter who became a pupil of Rembrandt.
Keil was born in Helsingør.
According to the RKD he was a pupil of the Danish painter Morten Steenwinkel, who became a pupil of Rembrandt in Amsterdam in the years 1642-1644.