In the Preschool and Primary School Dili International School enrols students whose first language is not English.

These students are provided with classroom support, and additional out of school hours ESL support however, it may be necessary for some students to enlist additional help and/or undertake extra English classes which may require additional fees be charged for the provision of these services.

Secondary students may enrol in the specialist ESL class with the view to quickly progressing to the Secondary Distance Support Program.