The BBC sci-fi drama's head writer addressed confusion about the show's future at last night's (May 12) BAFTA Television Awards.
"This is a thing that just seems to have slipped by... so can I say it very firmly - series eight is absolutely, definitely confirmed," Moffat said.
"It is real and it's happening - it's [taking up] most of my time at the moment."
Moffat added that he is unsure why some Doctor Who fans remain unclear about the show's fate.
"I get people telling me [that series eight is] not really happening," he explained. "It really, definitely, honestly is!"
Doctor Who's seventh series finale will air on BBC One this Saturday (May 18), with a special episode celebrating the programme's 50th anniversary to follow in November.
Series eight - which has been confirmed to star current companion actress Jenna-Louise Coleman - will then follow 2013's Christmas special.
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