| Highbury Fields Islington Council | 11.75 ha | | — |
| Barnard Park Islington Council | 4.11 ha | | — |
| Caledonian Park Islington Council | 3.94 ha | | — |
| Whittington Park Islington Council | 3.92 ha | | — |
| Gillespie Park Nature Reserve | 3.31 ha | | — |
| Elthorne Park | 2.6 ha | | — |
| Rosemary Gardens | 2.57 ha | | — |
| Paradise Park Islington Council | 2.35 ha | | — |
| Wray Crescent Islington Council | 2.26 ha | | — |
| St Mary Magdalene Gardens | 1.78 ha | | — |
| New River Walk Islington Borough Council | 1.74 ha | | — |
| Bunhill Fields Burial Ground City of London Corporation | 1.64 ha | | — |
| Dartmouth Park | 1.43 ha | | — |
| King Square Gardens Islington Council | 1.28 ha | | — |
| Spa Fields Islington Council | 1.16 ha | | — |
| Bingfield Park | 1.1 ha | | — |
| Crouch Hill Park | 1.0 ha | | — |
| Thornhill Square | 0.96 ha | | — |
| Laycock Green | 0.94 ha | | — |
| Finsbury Square Islington Council | 0.8 ha | | — |
| Archway Park | 0.77 ha | | — |
| Arundel Square | 0.77 ha | | — |
| Girdlestone Park | 0.77 ha | | — |
| Joseph Grimaldi Park | 0.75 ha | | — |
| St Paul's Park Islington Borough Council | 0.72 ha | | — |
| Hillside Park | 0.71 ha | | — |
| Claremont Square | 0.68 ha | | — |
| Petherton Green | 0.64 ha | | — |
| Newington Green Islington Council | 0.63 ha | | — |
| Cornwallis Square | 0.62 ha | | — |
| Edward Square Islington Council | 0.53 ha | | — |
| Foxham Gardens | 0.52 ha | | — |
| Olden Community Garden | 0.5 ha | | — |
| St Paul's Shrubbery | 0.49 ha | | — |
| Charterhouse Square | 0.48 ha | | — |
| Spa Green Islington Council | 0.43 ha | | — |
| Royal Northern Gardens | 0.42 ha | | — |
| Nightingale Park | 0.41 ha | | — |
| Barnsbury Square Islington Council | 0.4 ha | | — |
| Graham Street Park Islington Council | 0.4 ha | | — |
| Mitchison Baxter Park Islington Council | 0.4 ha | | — |
| St Luke's Garden | 0.4 ha | | — |
| Morton Road Park | 0.39 ha | | — |
| Duncan Terrace Gardens Islington Council | 0.37 ha | | — |
| Fortune Street Park | 0.37 ha | | — |
| Arlington Square London Borough of Islington | 0.35 ha | | — |
| Compton Terrace Gardens Islington Council | 0.35 ha | | — |
| Radnor Street Open Space | 0.35 ha | | — |
| Wilmington Square Islington Council | 0.35 ha | | — |
| Kinloch Gardens | 0.34 ha | | — |
| Islington Green | 0.33 ha | | — |
| Islington Road Gardens | 0.33 ha | | — |
| Barnsbury Wood | 0.32 ha | | — |
| Sunnyside Community Gardens | 0.31 ha | | — |
| Gibson Square | 0.29 ha | | — |
| Market Road Garden Islington Council | 0.29 ha | | — |
| Northampton Square | 0.29 ha | | — |
| Davenant Road Park Islington Council | 0.28 ha | | — |
| Philip Noel-Baker Peace Garden | 0.25 ha | | — |
| Thornhill Road Gardens | 0.25 ha | | — |
| Burder Close Community Space | 0.24 ha | 🐕 | — |
| Highbury Island | 0.23 ha | | — |
| Union Square | 0.22 ha | | — |
| Culpeper Park Islington Council | 0.21 ha | | — |
| Lloyd Square | 0.21 ha | | — |
| Landseer Gardens | 0.2 ha | | — |
| Scholefield Road Open Space | 0.2 ha | | — |
| Lonsdale Square Garden Islington Council | 0.19 ha | 🐕 | — |
| Astey's Row Rock Garden | 0.18 ha | | — |
| Basire Street Playground | 0.18 ha | | — |
| Owens Field Islington Council | 0.18 ha | | — |
| Biddestone Park | 0.17 ha | | — |
| Canalside Square | 0.16 ha | | — |
| Culpeper Community Garden | 0.16 ha | | — |
| Penn Road Gardens Islington Borough Council | 0.16 ha | | — |
| St Johns Garden Islington Council | 0.15 ha | | — |
| Battishill Street Gardens Islington Council | 0.13 ha | | — |
| Dance Square | 0.13 ha | | — |
| Packington Square | 0.13 ha | | — |
| Woodfall Park Islington Council | 0.13 ha | | — |
| Annette Gardens | 0.12 ha | | — |
| Grenville Gardens | 0.12 ha | | — |
| Colebrooke Row Gardens | 0.11 ha | | — |
| Pemberton Gardens | 0.11 ha | | — |
| Quaker Court | 0.11 ha | | — |
| Tibby Place | 0.11 ha | | — |
| Wilton Square | 0.11 ha | | — |
| Camden Road Open Space | 0.1 ha | | — |
| Compton Park Islington Council | 0.1 ha | | — |
| Sussex Way Gardens Islington Council | 0.1 ha | | — |
| Dibden Street Triangle | 0.08 ha | | — |
| Chambers Road Park | 0.07 ha | | — |
| York Way Community Garden | 0.07 ha | | — |
| Andersons Square | 0.06 ha | | — |
| Brewery Square | 0.06 ha | | — |
| Everleigh Street Open Space Islington Council | 0.06 ha | | — |
| Giesbach Road Open Space | 0.06 ha | | — |
| York Way Gardens | 0.06 ha | | — |
| Dog Free Zone | 0.05 ha | | — |
| Evershot Road Gardens | 0.05 ha | | — |
| Killick Street Garden | 0.05 ha | | — |
| Martin Luther King Adventure Playground | 0.05 ha | | — |
| Thornhill Bridge Community Gardens | 0.05 ha | | — |
| Vernon Square | 0.05 ha | | — |
| Archway Corner | 0.04 ha | | — |
| Cloister Garden | 0.04 ha | | — |
| Hathersage Court TRA Community Garden | 0.04 ha | | — |
| Pleasant Place Garden | 0.04 ha | | — |
| Community Garden | 0.02 ha | | — |
| Northampton Park Triangle | 0.02 ha | | — |
| Saint John's Churchyard Islington Council | 0.02 ha | | — |
| Thornhill Bridge Community Gardens | 0.02 ha | | — |
| WPCA Community Gardens Whittington Park Community Association | 0.01 ha | | — |