The Give Us A Clue star could appear as the father of Ronnie (Samantha Janus) and Roxy Mitchell (Rita Simons), claims The Sun.
He commented: "There's been some talk about me going into EastEnders as Ronnie and Roxy's dad.
"I would love that. It would also be great to link up with my great friend Babs Windsor."
Blair made a guest appearance in Emmerdale earlier this year.
Samantha Janus claimed in 2007 that she would like Ray Winstone, Terence Stamp or Malcolm McDowell to play the role of Archie Mitchell.
A show spokesperson said: "There are no current plans for Lionel to join the show."