Saint Alina may refer to:

• Saint Alena, born in Dilbeek, Belgium, and martyred c. 640
• Blessed Alina Martain, a Benedictine nun who died in 1125
• Blessed Michelina of Pesaro, a Franciscan penitent who died 19 June 1356.

• 19th Tennessee Infantry
• 19th Texas Legislature
• 19th Waffen Grenadier Division of the SS (2nd Latvian)
• 19th Waffen Grenadier Division of the SS (Latvian 2nd)
• 19th Wisconsin Volunteer Infantry Regiment
• 19th World Jamboree
• 19th World Science Fiction Convention
• 19th World Scout Jamboree
• 19-tone equal temperament
• 19 tone equal temperament
• 19 U.S. 264
• 19 USC
• 19 U.S.C.
• 19 wheels
• 19 Wheels
• 19 Wing Comox
• 19xx
• 19×19 go board
• 1-A
• 1a
• 1-a
• 1A
• 1A2 Key Telephone System
• 1-Abayı
• 1 aCn