| Honorific-Prefix: | Sir |
| John Chalstrey | |
| Office: | 668th Lord Mayor of London |
| Term Start: | November 1995 |
| Term End: | November 1996 |
| Predecessor: | Christopher Walford |
| Successor: | Roger Cork |
| Birthname: | Leonard John Chalstrey |
| Birth Date: | 17 March 1931 |
| Spouse: | Aileen Bayes (m. 1958) |
| Children: | 2 |
| Profession: | Surgeon |
Sir Leonard John Chalstrey (17 March 1931[1] – 12 March 2020) was a consultant surgeon and was 668th Lord Mayor of London from 1995 to 1996.[2]
In 1995, he was knighted and named Master Apothecary of the Worshipful Society of Apothecaries.[3]
He studied at Queens' College, Cambridge (1951–54)[4] before transferring to Barts Medical School to complete his clinical medical training (1954–57).[5]
From 1969 to 1996, Chalstrey was a senior lecturer at St Bartholomew's Medical College, about the historical funding of which he gave an address at Mansion House on 11 June 2001.[6] [7]
He was made a knight of the Most Venerable Order of the Hospital of Saint John of Jerusalem in 1995.[8] He was an Honorary Colonel in the City of London Field Hospital of Royal Army Medical Corps.[9]
Chalstrey was married in 1958 to Aileen Bayes; they had one son and one daughter.[10]
Sir John Chalstrey died at his home on 12 March 2020 at the age of 88.[11]
| Escutcheon: | Per fess Azure and Gules a Roman fort the entrance way closed and on each side a watch tower all Or masoned Proper between three lions passant Gold. |
| Crest: | Upon a helm with a wreath Argent and Gules a lion statant holding up in the dexter paw a chalice Or issuant therefrom a dragonet Argent. |
| Lambrequin: | Azure and Gules doubled Or and Argent. |
| Motto: | Servio Et Persevero (I Serve And I Persevere) [12] |