Dilly may refer to:
People:
- Erin Dilly (b. 1972), a Tony Award nominated actress
- Dilly Braimoh (b. 1959), an African-British television presenter and producer
- Dilly Knox (1884–1943), British codebreaker and classical scholar at King's College, Cambridge
Places
- Dili, also spelled Díli, the capital and largest city of East Timor.
- Dilly, Mali, a town and commune in Mali
- Dilly, Wisconsin, United States
Fiction:
- Dilly the Duck, a fictional animal character in the British 1984 TV series Thomas the Tank Engine and Friends
- Dilly the Dinosaur, protagonist of a children's book series by Tony Bradman
Music:
- "Dilly", a 2011 single by Band of Horses, taken from their 2010 album Infinite Arms
Other:
- Derby Dilly, a short-lived 19th century British political faction headed by Edward Smith-Stanley, 14th Earl of Derby
- Dilly, an alternate name for the Sapodilla (Manilkara zapota)