Jellejetta "Jetta" Klijnsma (Dutch pronunciation: ['j?ta? 'kl?insma?]; born 18 March 1957) is a Dutch politician of the Labour Party (PvdA).
She is the King's Commissioner of Drenthe since 1 December 2017.
Elected to the House of Representatives from 2010 to 2012, she focused on matters of culture, senior citizens, disabled people and medical ethics.
Previously she was State Secretary for Social Affairs and Employment in the Fourth Balkenende cabinet (2008–2010) and an alderwoman of the municipality of The Hague (1998–2008).
From 2012 to 2017 she was appointed again as State Secretary for Social Affairs and Employment, dealing with unemployment insurances, pay equality, long-term unemployment, poverty, and health and safety at work in the Second Rutte cabinet.