BBCStephen Flynn was elected to the Scottish Parliament earlier this monthA by-election to replace MP Stephen Flynn after his election to the Scottish Parliament will take place for Aberdeen South next month.
The SNP's former Westminster leader became an MSP for Aberdeen Deeside and North Kincardine earlier this month.
It has now been announced that the by-election to elect the new MP will take place on Thursday 18 June.
Nominations will be open tomorrow and close on Friday this week.
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At the Holyrood election on 7 May, Flynn came in ahead of the Conservatives with a slim majority of 1,244 (3.6%).
One of the highest-profile SNP politicians, the Aberdeen South MP had to step down from Westminster in order to take up his seat at Holyrood.
Flynn said he would be a champion for North Sea oil and gas workers, those struggling with the cost of living, and "young people searching for hope and aspiration".
He has been widely tipped as a future SNP leader.
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