Sir Nicholas Cosmo Bonsor, 4th Baronet, DL (9 December 1942 – 21 March 2023) was a British Conservative politician.
Having unsuccessfully fought Newcastle-under-Lyme in both February and October 1974 elections, Bonsor was Member of Parliament for Nantwich from 1979 to 1983, then for Upminster from 1983 until he lost the seat to Labour's Keith Darvill in 1997.
In 1994, just before he became a minister, Bonsor had challenged the incumbent Sir Marcus Fox for the chairmanship of the influential 1922 Committee, and narrowly lost by 129 votes to 116.
[1] Bonsor, a Eurosceptic, had previously rebelled against the government by voting several times against the ratification of the Maastricht Treaty in the 1992-93 parliamentary session.
This article about a Conservative Member of the Parliament of the United Kingdom representing an English constituency and born in the 1940s is a stub.