The term eaglet can refer to:
- Animals
- An eaglet, the immature young of an eagle, which in turn encompasses several species of bird of prey
- Ships
- HMS Eaglet (shore establishment), home of Royal Naval Reserve Merseyside, Royal Marines Reserve Merseyside and Liverpool URNU since 1995
- USS Eaglet (SP-909), later YP-909, a United States Navy patrol boat in commission from 1917 to 1921
- Aircraft
- P92 Eaglet, a high-winged, light aircraft built by the Tecnam aircraft company
- Persons
- The Eaglet (l'Aiglon), nickname for Napoleon II
- Fictional characters
- The Eaglet, a character from Alice's Adventures in Wonderland by Lewis Carroll
- Isis Eaglet, also known as Isis Egret, a character in Magical Chronicle Lyrical Nanoha Force