After the success of the two previous editions of MELDC, we are honoured to announce the third International Conference on Multilingual Education in Linguistically Diverse Contexts (MELDC19) to be held at the University of Primorska – SLOVENIA from 5 to 6 September 2019. The conference is organised jointly by MultiLingNet and the University of Primorska. The 1st MELDC was held at the University of Primorska, Koper, SLOVENIA in September 2017. The keynote speakers were: Prof. Christine Helot and Prof. Jean-Marc Dewaele. The 2nd MELDC was held at the University of Malta in August/September 2018. The keynotes were: Prof. Antoinette Camilleri Grima, Prof. Enlli M. Thomas and Prof. Julia Festman.