National colours are frequently part of a country's set of national symbols.

Many states and nations have formally adopted a set of colours as their official "national colours" while others have de facto national colours that have become well-known through popular use. National colours often appear on a variety of different media, from the nation's flag to their sports jerseys.

Some well-known national colours

• Argentina - light blue and white
• Australia - blue, green and gold
• Brazil - green, yellow and blue
• Canada - red and white
• China - red and yellow
• Denmark - red and white
• England - red and white
• Finland - blue and white
• France - blue, white and red (usually noted in this order, as in the French flag)
• Germany - black, red and gold
• Greece - blue and white
• India - green, white and orange
• Ireland - green.
• Italy - azure blue and white
• Kazakhstan - light blue and yellow
• Mexico - green, white and red
• Netherlands - orange
• New Zealand - black and white
• Romania - blue, gold and red
• Poland - red and white
• Portugal - red and green or blue and white
• Scotland - blue and white
• Spain - red and yellow
• Sweden - blue and yellow
• Thailand - red, white and blue
• Ukraine - blue and yellow
• United Kingdom - red, white and blue
• United States - red, white and blue

National colours of countries that no longer exist

• Soviet Union - red and yellow