Bahsita Mosque (Arabic: جامع بحسيتا), also known as Sita Mosque, is one of the historical mosques in Aleppo, Syria, dating back to the Mamluk period. It is located in al-Aqaba district of the Ancient City of Aleppo, near the Bab al-Faraj Clock Tower and the National Library of Aleppo. It was built in 1350. According to the Aleppine historian Sheikh Kamel al-Ghazzi, the name of the mosque is derived from the Syriac name of the neighbourhood Bet Hasiota (Arabic: بيت حسيوتا) or Bet Hasda (Arabic: بيت حسدا), meaning the house of purity.
In 1911, the octagonal minaret of the mosque was moved to the eastern side of the building to allow enough space to widen the nearby street.