{{infobox settlement |name = cornwall |official_name = city of cornwall |settlement_type = city (single-tier) |branding slogans = the friendly seaway city, a city with a world of possibilities |motto = pro patria |image_skyline = cornwall on 1.jpg |image_caption = pitt street, downtown cornwall |image_flag = flag of cornwall, ontario.svg |flag_size = 120x100px |image_blank_emblem = logo of cornwall, ontario.svg |image_shield = cornwall, ontario coat of arms.png |shield_size = 100x90px |pushpin_map = canada southern ontario |latd=45|latm=01 |lats=39 |latns=n |longd=74|longm=44 |longs=24 |longew=w |coordinates_display = inline,title |coordinates_region = ca-on |subdivision_type = country |subdivision_type1 = province |subdivision_type2 = county |subdivision_name =  |subdivision_name1 =  |subdivision_name2 = stormont, dundas and glengarry |leader_title = mayor |leader_name = leslie o'shaughnessy |leader_title1 = governing body |leader_name1 = cornwall city council |leader_title2 = mp |leader_name2 = guy lauzon (conservative) |leader_title3 = mpp |leader_name3 = jim mcdonell (pc) |established_title = founded |established_date = 1784 |area_magnitude = |area_footnotes = |area_land_km2 = 61.52 |area_metro_km2 = 509.03 |area_water = |population_as_of = 2011 |population_footnotes =  |population_total = 46340 |population_metro = 58957 |population_density_km2 = 753.2 |population_density_metro_km2 = 115.8 |elevation_footnotes = |elevation_m = 64.00 |timezone = est |utc_offset = â5 |timezone_dst = edt |utc_offset_dst = â4 |postal_code_type = postal code fsa |postal_code = k6h, k6j |area_code = 613 and 343 |website = www.cornwall.ca |footno
CanadaaUnited_States_border_towns Canadian_border_cities Cornwall,_Ontario Ontario_communities_with_large_francophone_populations Populated_places_on_the_Saint_Lawrence_River