Wakestock 2008, sponsored by Relentless energy drink, was the 2008 edition of the Wakestock music and wakeboarding festival that took place at two venues in the UK in summer of that year. The two locations were Blenheim Palace in Oxfordshire and Abersoch in Cardigan Bay, Wales. The line-ups were fairly similar for both sets of concerts but some acts appeared only at one of the events.

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The first festival takes place on the weekend of 27 to 29 June at the magnificent Blenheim Palace in Woodstock, Oxfordshire, England. The site will officially be open from 26–30 June. A large number of rock, pop and dance music acts will be performing over several stages.

The palace is home to the Duke of Marlborough and is a national heritage site. A specially constructed floating slider park will be put in place on the lake and over the weekend, in addition to the music, there is the opportunity to see some of the world's best wakeboarders battle it out for the title of Relentless Wakestock Blenheim Champion. Spectators can view all the action from the natural grandstand which surrounds the lake.

The Abersoch concert takes place on the weekend of Friday 4th to Sunday 6 July 2008 at Abersoch in Cardigan Bay, Wales. The line-up is for the most part the same as for the Oxford event but there is the addition of several more big names including local superstar Duffy.