Dwina may refer to:

• Northern Dvina River, a river in the Vologda and Arkhangelsk Oblasts, Russia
• Western Dvina River or Daugava, a river in Russia, Belarus and Latvia
• Dwina, Virginia, a community in Wise County, Virginia

• Selfadjoint operator
• Self-administered survey
• Self Advocacy
• Self-advocacy
• Self-affinity
• Self against City
• Self-aggrandizement
• Self Aid
• Self-aligned gate
• Self aligned gate
• Self-aligning ball bearing
• Self-amplified spontaneous emission
• Self-amputation
• Self-anchored suspension bridges
• Self anchor suspension bridge
• Self anchor suspension bridges
• Self-antonym
• Self-appellation
• Self-appointed benevolent dictator for life
• Self archive
• Self-archive
• Self-archived
• Self-archiving
• Self arrest
• Self assembled monolayer