 The Great Mosque of Gaza ( Arabic : جامع غزة الكبير , transliteration : Jāmaʿ Ghazza al @-@ Kabīr ) also known as the Great Omari Mosque ( Arabic : المسجد العمري الكبير , transliteration : Jāmaʿ al @-@ ʿUmarī al @-@ Kabīr ) is the largest and oldest mosque in the Gaza Strip , located in Gaza 's old city . 
