She told Radio Times: "My brother sent me a text saying, 'Congratulations, they've released odds on you being the new Doctor Who' - which we thought was very funny.
"It's all on Twitter, isn't it? I don't have Twitter. It is all on Twitter, isn't it?"
She added: "No-one's ever asked me about it. I assume they would have to ask me for it to be true."
Denying rumours she was set for the TARDIS, she told 'Daybreak' earlier this month: "I’m not going to be the first female Doctor Who, no, no, no, absolutely not, I absolutely wouldn’t contemplate that.
"But I do think it’s well over-time to have a female Doctor Who. I think a gay, black female Doctor Who would be the best of all."
1. She lives in South London with her actor-turned-writer husband Ed Sinclair and their two children Finn, seven and five-year-old Hal (credit:WENN)
Olivia Colman(02 of08)
Open Image Modal
3. She was described by her 'The Iron Lady' co-star Meryl Streep as 'divinely gifted' during her BAFTA acceptance speech for Best Actress following her portrayal of Margaret Thatcher's daughter, Carol.
Olivia Colman(03 of08)
Open Image Modal
4. She originally trained to be a teacher but realised it wasn't for her. “I would have been the sort of primary teacher who never noticed the struggling kids because I would have been struggling so much myself,” she later said. (credit:WENN)
Olivia Colman(04 of08)
Open Image Modal
5. She met her 'Peep Show' co-stars David Mitchell and Robert Webb when they were all students at Cambridge University (credit:WENN)
Olivia Colman(05 of08)
Open Image Modal
6. She got her kit off in the Brit flick, 'Confetti', opposite her 'Peep Show' co-star Robert Webb, something she later described as 'the worst experience of my life' (credit:WENN)
Olivia Colman(06 of08)
Open Image Modal
7. Her performance in the 2011 film Tyrannosaur received critical acclaim and bagged her several high profile awards including the British Independent Film Award for Best Actress, the Empire Award for Best Actress, Chlotrudis Award for Best Actress, the London Film Critics Circle Award for British Actress of the Year and the Sundance Film Festival World Cinema Special Jury Prize for Breakout Performances. Phew. (credit:WENN)
Olivia Colman(07 of08)
Open Image Modal
8. Her TV roles have included *takes deep breath* Doctor Who, Peep Show, Holby City, The Office, Green Wing, Skins, Beautiful People, Midsomer Murders, Rev, Twenty Twelve, Accused and of course, Broadchurch. (credit:WENN)
Olivia Colman(08 of08)
Open Image Modal
9. Olivia almost didn't take on the role of DS Miller in 'Broadchurch' because it involved being away from her two young sons whilst she filmed the West Country. “I don’t take jobs away from London because I don’t like being away from the boys," she said. "This is the longest I’ve spent away from them ever.” (credit:WENN)