Christian IV Glacier (Danish: Christian IV Gletscher or Kong Christian den IV's Gletscher) is a large glacier on the east coast of the Greenland ice sheet.

[1] It is named after King Christian IV of Denmark (1577 – 1648).

[2] The area surrounding Christian IV Glacier is uninhabited.

[3] Further south it separates the Lindbergh Range in the west from the Watkins Range in the east, flowing in a roughly north–south direction[1] until its terminus at the head of the Nansen Fjord in the East Greenland coast.

It is one of the longest glaciers in Greenland, and with a width of up to 24 km (15 mi), it is comparable in approximate length and width to the Beardmore Glacier in Antarctica.