- Source: Headstone South (ward)
Headstone South was an electoral ward in the London Borough of Harrow from 1978 to 2022. The ward was first used in the 1978 elections and last used for the 2018 elections. It returned councillors to Harrow London Borough Council.
2002–2022 Harrow council elections
There was a revision of ward boundaries in Harrow in 2002.
= 2018 election
=The election took place on 3 May 2018.
= 2014 election
=The election took place on 22 May 2014.
= 2010 election
=The election on 6 May 2010 took place on the same day as the United Kingdom general election.
= 2006 election
=The election took place on 4 May 2006.
= 2002 election
=The election took place on 2 May 2002.
1978–2002 Harrow council elections
= 1998 election
=The election took place on 7 May 1998.
= 1994 election
=The election took place on 5 May 1994.
= 1990 election
=The election took place on 3 May 1990.
= 1986 election
=The election took place on 8 May 1986.
= 1982 election
=The election took place on 6 May 1982.
= 1978 election
=The election took place on 4 May 1978.