Welcome to Chesham Grammar School
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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

Latest News

what's happening at Chesham Grammar

CGS Junior Singles Table Tennis Championship 2018 Posted Aug 10 - 2018

CGS Junior Singles Table Tennis Championship 2018

"Thank you to everyone that took part in our CGS Junior Singles Table Tennis Championship on Tuesday 10th July 2018 at Chesham Grammar School. We...
Joel Pierleoni part of GB Team for Junior Davis Cup Posted Jul 19 - 2018

Joel Pierleoni part of GB Team for Junior Davis Cup

Joel Pierleoni, Year 10, was part of the U16 GB team competing in the European Championships at the end of July.  The GB team came 5th out of 32 ...
CGS student competes in the IAIGC World Championships Posted Jul 6 - 2018

CGS student competes in the IAIGC World Championships

Lucy Jamieson, a Year 8 student at CGS was recently given some time away from school to compete in the IAIGC World Championships for Gymnastics. ...
'This Girl Can' at Chesham Grammar School Posted Apr 30 - 2018

'This Girl Can' at Chesham Grammar School

Girls' sport at CGS is making the headlines, with both individual awards and team trophies starting to pile up in the school trophy cabinet. &nbs...
CGS retain the U14 Bucks Rugby Championship Posted Apr 17 - 2018

CGS retain the U14 Bucks Rugby Championship

The Chesham Grammar School Under 14 Rugby squad claimed the Bucks County Rugby title with a professional and ruthless performance against Ou...
Ben Pierleoni - Berkhamsted Trophy Competition Posted Apr 5 - 2018

Ben Pierleoni - Berkhamsted Trophy Competition

The vaunted Berkhamsted Trophy, held in conjunction with Clere Golf, was won by Matt Wilcox, of North Hants Golf Club, on Saturday with a 72-hole tota...