An Australian human rights lawyer and WikiLeaks supporter has reportedly been placed on a watch list and requires permission from the Department of Foreign Affairs to fly home.

Jennifer Robinson claims she was stopped at Heathrow airport this morning, only days after meeting WikiLeaks founder Julian Assange.

'Watch list'... One-time WikiLeaks lawyer Jennifer Robinson.

Ms Robinson said she was told she was on an inhibited travel list and unable to enter Australia without permission from the Department of Foreign Affairs.

"Just delayed from checking in at LHR because I'm apparently 'inhibited' - requiring approval from Australia House @dfat to travel," she tweeted.