Fife MP Lesley Laird is Labour’s new Shadow Secretary of State for Scotland.
Party leader Jeremy Corbyn said he was “delighted” to appoint the member for Kirkcaldy and Cowdenbeath to the role.
Mrs Laird, who won her seat from the SNP in last week’s general election, is a former deputy leader of Fife Council and previously worked in human resources in the electronic, semiconductor and financial service industries.
She remains a councillor for Inverkeithing and Dalgety Bay.
Mr Corbyn said: “She brings a wealth of knowledge and practical real life experience to the Commons and will play a major role going forward as we hold the Tory government to account.
“She will work closely with me and Kez Dugdale as we present a positive Labour vision for Scotland’s future.”
Scottish Labour leader Kezia Dugdale said: “This is a fantastic appointment and I congratulate Lesley on being made Shadow Scottish Secretary.
“I know that she will do a fantastic job holding this miserable Tory government to account.”
Mrs Laird said: “I am delighted to have been appointed to this role by Jeremy.
“My priorities are the things that people told me are important to them in the general election campaign: that’s jobs, housing and public services.
“I look forward to working closely with Jeremy and Kez as Labour unites to take on the Tories, and I will be holding David Mundell to account for the actions of his government which is causing misery right across Scotland.”