Former Prime Minister Malcolm Turnbull will resign Federal Parliament effective from this Friday, following his ousting as leader of the Liberal Party last week.

In a meeting with senior Liberal colleagues, he stated he will leave his seat of Wentworth in eastern Sydney, causing a by-election which could see the Liberals lose this seat.

Those in the running for the seat for Wentworth include former diplomat Dave Sharma, and sister of former Prime Minister Tony Abbott, Christine Foster.