Fortis Green is a ward in the extreme north-western corner of the Borough of Haringey, north London. It is also the name of the road that runs between Muswell Hill and East Finchley which forms part of the A504.
The ward lies between Colney Hatch to the north, Muswell Hill to the east, Highgate to the south and East Finchley to the west. It is a mostly residential area, although it also contains two large hospitals: Coppets Wood Hospital to the north, which is the Infectious and Tropical Diseases Unit of the Royal Free Hospital NHS Trust, and St Lukes Woodside Hospital to the south. Both of these hospitals are now closed.
Fortis Green ward has a population of about 11,000 and is generally a middle-class area, with a higher proportion of skilled and highly qualified employees than the borough average (40.7% as compared with 26.3% are in social grade AB). More than half of the 16- to 74-year-olds in Fortis Green are qualified to degree level or higher, and employment levels are very high. About 85% of the population is White, higher than the borough average of about 65%. 47.2% of the housing stock is in houses; 52.8% in flats.