• Rosalia is the Latin term for Greek Anthesteria (literally, "rose festival"). It may also refer to:

people called Rosalia:

• Saint Rosalia

placenames:

• Rosalia, Washington
• Santa Rosalía, the name of several places in Mexico

in music:

• Rosalia, a modulating sequence

other:

• 314 Rosalia, an asteroid
• Rosalia (genus), a genus of beetles