Amnesty International has written to Premier League chief executive to Richard Masters offering to discuss proposed human rights changes to football's owners' and directors' test.
It comes after Newcastle's takeover by a a Saudi Arabian-backed group.
The Premier League said the new owners were separate from the state.
But Sacha Deshmukh, Amnesty International UK's chief executive, says the deal raised a number of "troubling questions".
The takeover was 80% financed by Saudi Arabia's Public Investment Fund, whose chair is Crown Prince Mohammed bin Salman.
There are many human rights issues linked to the kingdom, but the Premier League says it has received legal assurances from the new owners that the Saudi state would not control Newcastle United and there would be punishments if it was proven otherwise.