Marksmen were called when officers failed to tranquilise the animal using darts, after it was seen lurking in thick bushes near the housing block in Tuen Mun district.
A police spokesman said the boar was killed because of concerns for safety of the residents.
Common
Wild boar are common in rural parts of Hong Kong near its border with mainland China but are rarely seen in congested urban areas.
In September, a 120 kilogramme wild boar was shot dead by police after it fought with pet dogs and bit two residents in a rural village near the Hong Kong-China border.
The wild boar population is believed to have grown in recent years in Hong Kong's rural areas, which cover more than 70% of the territory's 1,078 km2.
