;Novels and poetry
*Davy is the subject of a humorous song by Richard Gendall, recorded in 1980 by folk-singer Brenda Wootton in the album Boy Jan Cornishman, the seven verses of which each recall a day of the week on which Davy purportedly made a particular discovery.
*English playwright Nick Darke wrote Laughing Gas (2005) a comedy script about the life of Sir Humphry Davy, unfinished at the time of Nick Darke's death; completed posthumously by actor and playwright Carl Grose and produced by the Truro-based production company O-region.
*Edmund Clerihew Bentley's first clerihew, published in 1905, was written about Sir Humphry Davy:
:Sir Humphry Davy
:Abominated gravy.
:He lived in the odium
:Of having discovered sodium.
* There is a humorous rhyme of unknown origin about the statue in Penzance: 
:Sir Humphrey Davy's kindly face, 
:Is turned away from Market Place
:Towards St Michael's Mount
:So, if he do want to tell the time
:He've got to wait till the clock do chime 
:Then he's forced to count.
*Jules Verne refers to Davys geological theories in his 1864 novel Journey to the Centre of the Earth'
* On the 2021 TV show Avenue 5, when asked who he is referring to, Captain Ryan, played by Hugh Laurie, responds, "Who do you think? Sir Humphrey Davy?"