| Flag | Duration | Use | Description |
|---|
 | 1766–1796 | Flag of the French Colony of Saint Lucia | Thedrapeau aux serpents was adopted by French colonial officials in 1766 for use as a civil ensign in both St Lucia andMartinique. The flag features a white cross on a blue field with four L-shaped (for Lucia) white fer-de-lance vipers in each quarter. |
 | 1796–1801 | Flag of the United Kingdom | Following the British annexation of the island theKings Colours became the official flag of the colony. |
 | 1801–1875 | Flag of the United Kingdom | In 1801 theUnion Jack was adapted to include the St. Patrick's saltire. This would be the official flag of the island until its adoption of a unique colonial ensign. |
 | 1875–1939 | Flag of the British Colony of Saint Lucia | TheLatin motto in the seal reads:STATIO HAUD MALEFIDA CARINIS (roughly, "Hardly a faithless guard for ships"). |
 | 1875–1939 | Flag of thegovernor of Saint Lucia | The Union Jack defaced in the centre with the 1875 arms of Saint Lucia surrounded by a laurel wreath. |
 | 1939–1967 | Flag of the British Colony of Saint Lucia | A BritishBlue Ensigndefaced with the arms of the colony. This consisted of a black shield featuring two sticks of bamboo forming a cross, with twoTudor roses symbolisingEngland and twofleurs-de-lis symbolisingFrance occupying the four quadrants. |
 | 1939–1979 | Flag of the governor of Saint Lucia | The Union Jack defaced in the centre with a white disc containing the 1939 arms of Saint Lucia and surrounded by a laurel wreath. |
 | 1967–1979 | Flag of Saint Lucia | A cerulean blue field charged with a yellow triangle in front of a white-edged black arrowhead. |
 | 1979–2002 | Flag of Saint Lucia | A cerulean blue field charged with a yellow triangle in front of a white-edged black arrowhead. The yellow triangle was enlarged and the arrowhead made narrower. |