The Brazil defender was strongly reported as being one of the Catalans’ targets to strengthen their defence.
It was reported that Barca had placed at least one official bid to his club, but the 26-year-old said he was not interested.
"There was an official offer (from Barcelona), but I decided to stay at Chelsea," Luiz told Gazeta Esportiva.
"I am happy to play for a big club and be in the national team to represent my country."
Luiz joined the Blues from Benfica for around £20m in 2011 and has gone on to make over 100 appearances for the West London club.
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