Dr. Raihana Abdul Wahab is a Senior Lecturer in the Islamic Astronomy Programme, Department of Fiqh-Usul and Applied Sciences, Academy of Islamic Studies, Universiti Malaya. She holds a Bachelor of Shariah (Major in Islamic Astronomy) and a Ph.D. in Islamic Astronomy from Universiti Malaya. Her research focuses on Islamic Astronomy (Falak), particularly observational astronomy, crescent moon observation, prayer time determination, digital astronomical imaging, and the integration of astronomy with Islamic jurisprudence. Her research has significantly influenced Islamic astronomical practices in Malaysia. She led the University of Malaya-funded project Sky Brightness and the Determination of Fajr Prayer Time and later headed a JAKIM-funded study that re-evaluated the Sun's altitude for determining the beginning of Fajr. The findings informed the nationwide revision of Malaysia's Fajr prayer time parameters (2019–2020) and contributed to the 2025 revision of the JAKIM Guideline for Young Crescent Moon Observation. Dr. Raihana has published in peer-reviewed journals and policy papers and serves on the Perak State Falak Committee (2018-present), the JAKIM Islamic Astronomy Expert Panel (2024–2027), and as Malaysia's National Astronomy Education Coordinator under the Office of Astronomy for Education of the International Astronomical Union (2024–2027)