The widow of former MP and AM Peter Law says she wants to stand in one of the two by-elections caused by his death.
Trish Law wants the nomination of Blaenau Gwent People's Voice
Trish Law hopes to stand as an independent in her late husband's Welsh assembly Blaenau Gwent seat on 29 June.
It is expected that the parliamentary by-election will be held on the same day, with an official announcement likely soon from the Commons.
Three parties - Labour, Tories and Lib Dems - have also named candidates for Wales' first double by-election.
Mr Law, who died last month aged 58, was independent MP and AM for the south Wales valleys seat.
Mrs Law is to put her name forward for the nomination of the Blaenau Gwent People's Voice group, which backed her late husband.
The group meets on Monday to also nominate its candidate for the parliamentary poll. Dai Davies, Mr Law's election agent, is currently the only name the group has received.
The Conservatives have picked Cardiff councillor Jon Burns to contest the assembly seat and Margrit Williams for the parliamentary poll.
John Hopkins will stand for the Labour Party for the assembly and Owen Smith will contest the Westminster seat.
The Liberal Democrats have chosen Abertillery councillor Steve Bard for the assembly seat and Amy Kitcher for Westminster.
Plaid Cymru is due to confirm its candidates next Monday.