The former McLaren Autosport BRDC Award winner narrowly missed out on last year's British F3 title to teammate Jaime Alguersauri, and will be paired with the Spaniard again in the World Series by Renault's headline championship.
"I'm very excited to be racing in World Series this year and grateful once again for the support of the Racing Steps Foundation," said Turvey, who tested Carlin's WSR car last autumn.
"The World Series car requires a completely different style of driving compared to the F3 car, but in the final stages of winter testing I really began to understand how to get the best from the car, and I can't wait to get back out on track again.
"I'm very pleased to be staying with Carlin after such a successful season with the team last year and I expect us to be achieving the same level of results in World Series as we did last season in F3."
Team boss Trevor Carlin said he was pleased to have been able to promote drivers from within his line-up, and is confident that his squad will be title contenders this season.
"Oliver was a huge asset to the team in 2008," said Carlin.
"He is a very talented and intelligent driver and we're delighted that the Racing Steps Foundation have entrusted us with taking Oliver to the next step in World Series by Renault.
"Oliver's performance in testing so far has been extremely encouraging and I expect to see the same great performance from him in the World Series car as we saw in F3.
"It's a testament to the team that Oliver and Jaime will continue their careers with Carlin, and I know that their healthy and competitive relationship will push them and the team forward.
"We have a very strong driver line-up and it's our full intention that Carlin win the World Series title this season."
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