The present study deals with the analysis of the floristic composition including plant species, life-span, life-form spectra and floristic categories of weeds associated with mango orchards in Ismailia governorate. A total of 102 weed species (79 annuals, 21 perennials and 2 biennials) related to 85 genera and grouped under 30 families were recorded. Out of the total species, 23 species (22.55%) were monocotyledoneae and 79 species (77.45%) dicotyledoneae. Poaceae, Asteraceae, Brasicaceae and Fabaceae were the most species-rich families representing collectively about 50% of the total recorded species. Therophytes were the predominant life form and constituted 73.53% of the total flora followed by hemicryptophytes (12.75%), geophytes (4.9%), chamaephytes (3.92%), nanophanerophytes (2.94%) and helophytes (1.96%). The chorological analysis of the surveyed flora revealed that the Mediterranean elements constituted the main bulk (41.18%) of the total flora of the area. The other major chorotypes were cosmopolitan (24.51%), pantropical (13.73%) and palaeotropical (7.84%). Saharo-Sindian elements comprised 20 species (19.6%) of the recorded flora. The other floristic categories were either poorly represented by few number of species or absent. Comparison between the presnt floristic composition of mango orchards in Ismailia and adjoining areas or previous studies of Ismailia mango orchards were included.