Disability can be understood as the interaction between someone’s impairment (e.g., physical, hearing, speech, intellectual, cognitive, visual etc.), the barriers which exist in the environment (e.g., absence of laws and policies protecting the rights of persons with disabilities, absence of accessibility, stigma and discrimination etc.) as well as other personal intersecting factors (e.g., age, gender, diverse SOGIESC, race, nationality, migration status etc.). Persons with disabilities are estimated to represent 16% of the world’s population or around 1.3 billion people in the world (WHO, 2023). It is also known that 80% of persons with disabilities live in low and middle-income countries. Data on migrants with disabilities is still very limited, therefore, it is important to obtain more data about this group. Data on persons with disabilities can be challenging to collect and different methodologies should be used for different purposes. For prevalence purposes (the overall number of persons with disabilities in a given population), the Washington Group Short Set on Functioning (WG-SS) should be used. The WG-SS is used to support international comparability of the data, focusing on questions about the difficulties a person may have in undertaking basic functioning activities. Nevertheless, there are several criteria which need to be met in order to obtain reliable data when using the WG-SS. Despite the importance of collecting data on prevalence of migrants with disabilities, it is even more crucial to understand their challenges, difficulties, conditions, etc. throughout the migration process. This data should be collected through qualitative data collection exercises using Key Informant Interviews and Focus Group Discussions for instance. For more information, check the Decision Tree on Data for Disability Inclusion (LINK) and the Guidance Note for Data on Disability Inclusion (DFID, 2019).