Lusitanian
Lusitanian may refer to:
- Lusitanians, an ancient people of western Iberian Peninsula
- Lusitanian language, the language of the ancient Lusitanians
- Lusitanian mythology, the mythology of the ancient Lusitanians
- Lusitanian War, the war between Ancient Rome and the ancient Lusitanians
- Lusitania, a Roman province in western Iberian Peninsula
- Lusitania, New Latin designation of Portugal
- Something Portuguese
- Lusitania, New Latin designation of Portugal
- RMS Lusitania, an ocean liner that was sunk by a German U-Boat during World War I
- British Rail Class 40 diesel locomotive D225, built by English Electric at Newton-le-Willows, Lancashire
- Lusitanian distribution, in biology, a type of disjunct distribution of certain species