*Shortly after his funeral, his wife organised a memorial tablet for him in Westminster Abbey at a cost of £142.
*In 1872, a statue of Davy was erected in front of the Market Building, Penzance, (now owned by Lloyds TSB) at the top of Market Jew Street, Penzance.
*A commemorative slate plaque on 4 Market Jew Street, Penzance, claims the location as his birthplace. A secondary school in Coombe Road, Penzance, is named Humphry Davy School. 
*A pub at 32 Alverton Street, Penzance, is named "The Sir Humphry Davy".
*One of the science buildings of the University of Plymouth is named The Davy Building.
*There is a road named Humphry Davy Way adjacent to the docks in Bristol.
*Outside the entrance to Sunderland Football Clubs Stadium of Light stands a giant Davy Lamp, in recognition of local mining heritage and the importance of Davys safety lamp to the mining industry.
*There is a street named Humphry-Davy-Straße in the industrial quarter of the town of Cuxhaven, Schleswig-Holstein, Germany.
*A satellite of the University of Sheffield at Golden Smithies Lane in Wath upon Dearne (Manvers) was called Humphry Davy House and was home to the School of Nursing and Midwifery until April 2009.
*Davy Sound in Greenland was named in his honour by William Scoresby (1789–1857).
*There is a zone of activity commercial area in La Grand-Combe, Gard, France, a former mining town, named after Davy.
*Mount Davy in New Zealand's Paparoa Range was named after him by Julius von Haast.