“Do you want to design my racing helmet for the upcoming F1 season?” the Mercedes driver wrote on Instagram as he announced the competition.
“I'm on the lookout for a dope new layout that evolves my current theme and features the candy apple red in my existing design. I'll be picking the design that I feel is the most stylish, inspiring, iconic and eye-catching.”
The creator of the winning design will have the chance to meet Hamilton at one of this season’s races where the three-time world champion will present them with a full-size signed replica helmet.
Details of the competition, including a design template, can be found here.
GALLERY: Lewis Hamilton's helmet history
When Hamilton broke into F1 racing in 2007 with McLaren, he was still using the bright yellow helmet design he'd used since karting. (© Sutton Images)
Great Britain 2009
Hamilton gave his traditional look a patriotic twist for his home race at Silverstone in 2009. (© Sutton Images)
Hamilton paid homage to Monaco's casinos in 2010 by adding a roulette wheel to his design. (© Sutton Images)
A huge Bob Marley fan, Hamilton paid tribute to the Jamaican musical icon with this design for the 2011 Indian Grand Prix. (© LAT Photographic)
Hamilton used several special helmet designs during his final season with McLaren in 2012, including this one which featured a traditional Chinese sailing vessel. (© Sutton Images)
Great Britain 2012
Hamilton honoured both his British nationality and his Grenadian heritage with this sparkling Silvertstone special. (© Sutton Images)
United States 2012
The stars and stripes featured prominently on Hamilton's helmet as he became the first driver to win at Austin's brand-new Circuit of The Americas in 2012. (© Sutton Images)
For the 2012 race at Marina Bay, Hamilton added the lion head symbol of Singapore to the top of his helmet. (© Sutton Images)
Hamilton wore a Samba-inspired helmet for the 2012 race in Sao Paulo - his final Grand Prix for McLaren. (© Sutton Images)
Hamilton's switch to Mercedes in 2013 brought a fresh new look to his yellow, blue, red and green design. (© Sutton Images)
Dog Roscoe and then-girlfriend Nicole Scherzinger featured on Lewis's elaborate Monaco helmet design in 2013. (© LAT Photographic)
United States 2013
Hamilton paid tribute to another of his musical heroes at Austin in 2013, as Michael Jackson was immortalised on his lid. (© Sutton Images)
An image of Sao Paulo's iconic Christ the Redeemer statue took pride of place on Hamilton's helmet at the 2013 Brazilian Grand Prix - one of several special designs he's used at the race. (© Sutton Images)
In 2014, Hamilton made a major change to his basic helmet design, switching from yellow to white and 'candy apple' red. He later added stars to represent each of his world championship crowns. (© Sutton Images)
With the rules now restricting drivers to a single 'one-off' design per season, Hamilton chose last year's Brazilian Grand Prix to unleash this helmet. (© Sutton Images)