The international welcome office of UCLouvain addresses to students, researchers and teachers coming from abroad in French and English.
It also publishes an international guide that provides information on formalities and procedures before arriving in Belgium (immigration formalities, housing possibilities, registration at UCLouvain...).
If you do not find the information you are looking for in the international guide, do not hesitate to contact the Welcome Desk Researchers: Welcome-researcher@uclouvain.be.
In addition, the Language Institute of the UCLouvain organizes French courses.
The Corsci (scientific community) also has a page dedicated to "International Researchers".