This technical brief has been developed by the United Nations Educational, Scientific and Cultural Organization (UNESCO) to strengthen the routine monitoring of school violence that is based on sexual orientation, gender identity or gender expression (SOGIE). It is informed by best practice from large institutional surveys that have been successfully conducted at the international or national level. The Brief provides recommendations on: Questions to capture data on the sexual orientation or gender identity of students; Questions to capture data on school violence that is specifically based on SOGIE. The Brief also gives guidance on: The challenges in collecting data on school violence based on SOGIE; Identifying and fulfilling indicators on school violence based on SOGIE. The audience for this technical brief is: monitoring and evaluation specialists who manage institutional surveys at the international or national level (including school-based and population-based studies); policy-makers in the education sector; and researchers who investigate school violence, including against young lesbian, gay, bisexual, transgender and intersex (LGBTI) people and students who are perceived as gender non-conforming.