The other successful agencies are Lean Mean Fighting Machine for digital communications; Band & Brown for PR; and Drum for sponsorship.
The appointments follow a series of competitive pitches managed by the Central Office of Information.
The three-year campaign will be based on the proposition that studying modern foreign languages allows young people to connect with other cultures within their immediate environment, as well as opening up opportunities for them in the future on both a professional and personal level.
It will target students of secondary school age, their parents and the teaching workforce to encourage more young people to study languages post-14 at GCSE and equivalent level.
The winning agencies will work in partnership with DCSF to develop and deliver the campaign, which will launch this summer.
Earlier this month DCSF appointed Naked to handle communications planning for a campaign promoting science and maths qualifications to students. It also appointed Lowe to handle advertising, Glue for digital communications and Fishburn Hedges for PR.