Welcome to Chesham Grammar School, an outstanding, co-educational school of over 1200 students.  CGS has a reputation for excellence.  We have high academic standards and superb examination results.

Almost all of our students progress to their first choice university including Oxford and Cambridge.  Our students will be the leaders of tomorrow and our aim is to ensure that they are well equipped for 21st century life.  We want them to be confident, articulate and optimistic as well as respectful, tolerant and compassionate.  Above all, we want them to be happy.

With best wishes Annmarie McNaney – Headteacher

Read more from the Headteacher


Outstanding colour school                      Leadership programme 2017              Ism gcse 2017 bronze black               Csw logo investors in careers cmyk

Latest News

what's happening at Chesham Grammar

A very happy Ryan! Posted Sep 17 - 2020

A very happy Ryan!

In a shortened season Ryan achieved two fifties for Berkhamsted Cricket Club's senior sides this season and last Saturday scored 151 agains...
National Enterprise Finals - watch our video entries! Posted Jul 14 - 2020

National Enterprise Finals - watch our video entries!

Dear Parents Every year at CGS, years 7 & 10 take part in the National Enterprise Challenge.  It starts in January, where they are split int...
Alumni Newsletter Posted Jul 2 - 2020

Alumni Newsletter

Please click on the following link to catch up on the latest CGS Alumni newsletter
Enrichment Week & Chiltern Foodbank Posted Jul 2 - 2020

Enrichment Week & Chiltern Foodbank

This week is enrichment week at CGS and students are choosing from a myriad of activities such as: Virtual Performing Arts Orchestra Performance ...
CGS Table Tennis Centre win Community Award Posted May 22 - 2020

CGS Table Tennis Centre win Community Award

Chesham Table Tennis Centre won a Chiltern District Community Award 2020 for Healthy Living'.  Local Councillor Liz Walsh very kind...
FOCGS Prize Draw Posted May 13 - 2020

FOCGS Prize Draw

Dear Parents, We are currently left with very few fundraising opportunities between now and the end of the school year. This is particularly disappoi...