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When Marathon became Snickers

For many British adults it will always be a Marathon. The switch to Snickers came in 1990.

Sweet scandals and controversies 2 minute read Updated 26 September 2026 2 sources

In this article
  1. Marathon
  2. The switch
  3. Why companies do it
  4. A retro return
  5. Named after a horse
  6. Still a Mars family bar

The Snickers bar, peanuts, caramel and nougat covered in milk chocolate, was created by Mars in the United States in 1930 and named after the Mars family's favourite horse. But in Britain and Ireland, for decades, it had a different name: Marathon.

Marathon

Mars sold the bar in Britain and Ireland under the name Marathon. Generations of British children grew up with it, and to many people Marathon was simply what the bar was called. Confusingly, Marathon was also the name of an unrelated bar sold in the United States in the 1970s.

The switch

In 1990 Mars changed the name in both Britain and Ireland to Snickers, so that the bar would have the same name everywhere in the world. Plenty of people still call it a Marathon.

Why companies do it

Global brand names make advertising, packaging and planning simpler for multinational companies: one name, one logo, one campaign. For shoppers, though, the old names carry memories. The same thing happened when Opal Fruits became Starburst in 1998: see Opal Fruits. We have gathered the other renamings in sweets that changed their names.

A retro return

Nostalgia is powerful enough that the old name has come back, briefly. In 2019 a Marathon retro edition was sold exclusively at the supermarket Morrisons for three months.

Named after a horse

The Snickers name itself comes from the stables. Frank Mars, the founder of the company, loved horses and built a vast estate, Milky Way Farm, in Tennessee. The bar was named after the family's favourite horse. See Frank Mars and the Milky Way.

Still a Mars family bar

Snickers is now sold around the world, made by the family firm behind the Mars bar, M&M's and Maltesers. For the story of the family that owns it, see the mystery of the Mars family.

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Questions and answers

When did Marathon change to Snickers?

In 1990, in both Britain and Ireland, so the bar would carry the same name as everywhere else.

Why is Snickers called Snickers?

It was named after the Mars family's favourite horse.

Can you still buy a Marathon bar?

Only briefly: a Marathon retro edition was sold at Morrisons for three months in 2019.

Sources

  1. Snickers, Wikipedia
  2. Starburst (candy), Wikipedia

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