Barry Sheerman’s Huddersfield seat is one of 14 key constituencies where Labour candidates are to be announced early, according to party insiders.
The grassroots news website LabourList says candidates are to be selected “imminently” in the “specified” constituencies.
As well as Huddersfield there are two other Yorkshire seats: Doncaster Central and York Outer, both held by Labour.
The others on the list are Stretford and Urmston, and Southampton Test, which are also Labour, and the following Conservative seats: Bury North, Gedling, Warrington South, Burnley, Leigh, Stroud, Truro and Falmouth, Milton Keynes South, Carlisle.
Local parties have apparently been given the go-ahead by Labour’s National Executive Committee to begin selecting candidates for the general election that many believe is looming.
LabourList says the party intends to complete trigger ballots for sitting MPs by June. Mr Sheerman joins parliamentary colleagues Kate Green (Stretford and Urmston), Alan Whitehead (Southampton Test) and Dame Rosie Winterton (Doncaster Central) in standing down.
Among those who have announced their intentions to join the list of candidates in Huddersfield are councillors Naheed Mather and Mus Khan, both members of the decision-making Cabinet on Kirklees Council and who both represent Dalton ward.
London-based commercial lawyer Hugh Goulbourne is also considering standing. He has been circling the seat for some time.
Other names in the frame are Kirklees Council leader Shabir Pandor, former councillor Harpreet Uppal, Tyler Hawkins, chair of Huddersfield Labour Party and a newly-elected councillor in Dalton, and secretary of Huddersfield Labour Party, Mark Morris.
Cllr Pandor was tipped as a potential runner to fight last year’s Batley and Spen by-election for Labour but threw his weight behind Kim Leadbeater when she was named as the party’s candidate. His name has been linked with the Huddersfield seat but he has not confirmed his intentions, declaring he is “keeping his options open”.
Ms Uppal stood down as a councillor for Ashbrow ward at this year’s local elections. She works as senior office manager and campaign lead for Oldham East and Saddleworth MP Debbie Abrahams.
Cllr Mather was previously on the Labour Party shortlist for Blackburn and was a candidate for Leicester South.
Mr Goulbourne last year stood unsuccessfully to be Labour candidate in the West Yorkshire mayoral elections. He previously said he was considering his position but stopped short of announcing his candidacy.