The Green Ensign (Irish: An Meirge Uaine) is a historical flag flown by some Irish merchant vessels from the 17th century to the early 20th century.^[1] The flag consists of a green field with a golden Irish harp and a canton containing either St George's Cross or a version of the Union Jack.

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Quick Facts Use, Proportion ...

Green Ensign

Use	Civil ensign
Proportion	1:2
Adopted	British Merchant Navy
Design	Green with the Union Jack occupying one quarter of the field and placed in the canton and a harp in the fly.

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This flag has appeared in these historical flag plates:

• 1685 Downman's Flag Chart
• 17th century A New Table of all the Ships, Collors or Ensings, in the Wholl Water World Newly Eneressed and Amende and all falts or Errors Corrected Never befor thytim brought to Light^[2]
• 1700 Len's Flag Chart
• c. 1700 Table des Pavillons quel on arbore dans toutes les Parties du Monde Connu (Peter Schenk the Elder)^[3]
• early 18th century: A new table of all the names of the principal parts and rigging of a man of war^[4]
• 1772 French Encyclopédie
• 1783 Bowles's Universal Display of the Naval Flags of all Nations
• 1799 Flags of all Nations
• 1848 Flaggen Aller Seefahrenden Nationen
• 1868 Johnson's new chart of national emblems
• 1889 Drawings of Flags of All Nations - British Admiralty
• 1917 National Geographic Flag Book

• Blue Ensign
• Red Ensign
• White Ensign
• Green harp flag