The Games were first held in Hamilton, Canada in 1930, when 11 countries sent a total of 400 athletes to take part.
In Glasgow 2014 there will be more than 4,500 athletes from 71 nations competing in 17 sports over 11 days.
Scotland has previously hosted the event twice, in 1970 and 1986, both in Edinburgh. This will be the first time Glasgow is the host city.
Comments: Will you be watching the Commonwealth Games?
Sporting superstars such as Usain Bolt, Mo Farah and Tom Daley are all competing in what is being billed as the biggest and best Commonwealth Games yet.
The Commonwealth is a collection of countries that are linked in some way to Great Britain, all apart from one - Mozambique.
Many years ago Britain used to control lots of countries as part of something called the British Empire.
Over the years the Empire has disappeared as countries have taken charge of themselves, and has reformed and changed to become the Commonwealth.
All 53 members have signed up to a set of values including democracy, gender equality and international peace and security.
During the opening ceremony the Games will be officially opened by the Queen, who is the head of the Commonwealth.
Africa
Botswana, Cameroon, Ghana, Kenya, Lesotho, Malawi, Mauritius, Mozambique, Namibia, Nigeria, Rwanda, Seychelles, Sierra Leone, South Africa, Swaziland, Tanzania, The Gambia, Uganda, Zambia
Americas
Belize, Bermuda, Canada, Falkland Islands, Guyana, St. Helena
Asia
Bangladesh, Brunei Darussalam, India, Malaysia, Maldives, Pakistan, Singapore, Sri Lanka
Caribbean
Anguilla, Antigua & Barbuda, Bahamas, Barbados, British Virgin Islands, Cayman Islands, Dominica, Grenada, Jamaica, Montserrat, St. Kitts & Nevis, St. Lucia, St. Vincent & The Grenadines, Trinidad & Tobago, Turks & Caicos Islands
Europe
Cyprus, England, Gibraltar, Guernsey, Isle of Man, Jersey, Malta, Northern Ireland, Scotland, Wales
Oceania
Australia, Cook Islands, Kiribati, Nauru, New Zealand, Niue, Norfolk Island, Papua New Guinea, Samoa, Solomon Islands, Tonga, Tuvalu, Vanuatu
List taken from Glasgow 2014 official website

Edinburgh-born Collins went into a coma after suffering a stroke and two haemorrhages in 2005.
The Possibilities are Endless, explores his journey from the brink of death to rediscovering memories lost because of his medical condition.
NHS Highland and Chest Heart and Stroke Scotland will host the screening in Inverness on 17 September.
The film will be shown at Eden Court.
Sandra Hewitt, of NHS Highland, said: "This is an inspirational film showing one man's personal journey and I think it will have a profound effect on stroke survivors, not just here in Highland, but across the UK and beyond.
"Stroke is a lifelong condition but you can improve with time."
She added: "I'm looking forward to the film. It's one man's story which many of those we hope will attend can see similarities with their own situation and they can also get the chance to meet their peers and learn about what support is available for them."
After waking from his coma, the first two phrases Collins was able to say were "Grace Maxwell" - which is his wife's name - and "the possibilities are endless".
The singer-songwriter is known for his work with the band Orange Juice and his 1995 solo hit A Girl Like You.
The Commonwealth Games take place every four years, with the 2014 event being held in Glasgow, Scotland.
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A film about songwriter Edwyn Collins is to be given a special screening to raise awareness about strokes.