The term Jamaat (Arabic: جماعتِ ) (meaning Assembly) can apply to the following:
- Jamia - a gathering or congregation; place of gathering.
- Jamaat-e-Islami - a South Asian Islamic movement based in Pakistan, Bangladesh (Jamaat-e-Islami Bangladesh) and India (Jamaat-e-Islami Hind).
- Jamaat-ul-Muslimeen - a Muslim organization in Indo-Pak.
- Jamiat Ulema-e-Hind - an Islamic group in India.
- Tablighi Jamaat - a global Islamic missionary group.
- Jemaah Islamiyah - an Indonesian Islamic group.
- Jama'at al-Jihad al-Islami - an Islamic group operating in Central Asia and Russia.
- Jamaat ul-Fuqra - an Islamic group operating in Pakistan.
- Jama'at-ud-Da'wah - an Islamic group operating in Pakistan.
- Jamaat Khana - a place of worship in the Ismaili branch of Shia Islam.
- Jamia Millia Islamia - a university established by Muslims in New Delhi, India.
- Jamia Nazmia - a Shia Muslim education centre in Lucknow, India.
- Al Jamea tus Saifiyah - an Islamic academy in Surat, India.
- Jama'at-e Rabbani - a Christian Assemblies of God organisation in Iran.