Look up Trojan horse in Wiktionary, the free dictionary.
The Trojan Horse, according to legend, was a giant hollow horse in which Greeks hid to gain entrance to Troy, also used metaphorically.
Trojan Horse may also refer to:
- Trojan horse (business), a business offer that appears to be a good deal but is not
- Trojan horse (computing), a computer program that appears harmless but is harmful