List of Connecticut Civil War units

Infantry

 * 1st Regiment Connecticut Volunteer Infantry (3 months)
 * 2nd Regiment Connecticut Volunteer Infantry (3 months)
 * 3rd Regiment Connecticut Volunteer Infantry (3 months)
 * 4th Regiment Connecticut Volunteer Infantry
 * 5th Regiment Connecticut Volunteer Infantry
 * 6th Regiment Connecticut Volunteer Infantry
 * 7th Regiment Connecticut Volunteer Infantry
 * 8th Regiment Connecticut Volunteer Infantry
 * 9th Regiment Connecticut Volunteer Infantry
 * 10th Regiment Connecticut Volunteer Infantry
 * 11th Regiment Connecticut Volunteer Infantry
 * 12th Regiment Connecticut Volunteer Infantry
 * 13th Regiment Connecticut Volunteer Infantry
 * 14th Regiment Connecticut Volunteer Infantry
 * 15th Regiment Connecticut Volunteer Infantry
 * 16th Regiment Connecticut Volunteer Infantry
 * 17th Regiment Connecticut Volunteer Infantry
 * 18th Regiment Connecticut Volunteer Infantry
 * 19th Regiment Connecticut Volunteer Infantry
 * 20th Regiment Connecticut Volunteer Infantry
 * 21st Regiment Connecticut Volunteer Infantry
 * 22nd Regiment Connecticut Volunteer Infantry
 * 23rd Regiment Connecticut Volunteer Infantry
 * 24th Regiment Connecticut Volunteer Infantry
 * 25th Regiment Connecticut Volunteer Infantry
 * 26th Regiment Connecticut Volunteer Infantry
 * 27th Regiment Connecticut Volunteer Infantry
 * 28th Regiment Connecticut Volunteer Infantry
 * 29th Regiment Connecticut Volunteer Infantry (African Descent)
 * 30th Regiment Connecticut Volunteer Infantry (African Descent) - four companies organized in March 1864; consolidated with the 31st United States Colored Infantry on May 18, 1864

Cavalry

 * 1st Regiment Connecticut Volunteer Cavalry
 * 1st Squadron, Connecticut Cavalry

Artillery

 * 1st Connecticut Heavy Artillery Regiment
 * 2nd Connecticut Heavy Artillery Regiment
 * 1st Connecticut Light Artillery Battery
 * 2nd Connecticut Light Artillery Battery
 * 3rd Connecticut Light Artillery Battery