Which states in the southeast do not have coast lines?

Since there is no general agreement on which states are southeast and since you don't say whether you mean only ocean coasts, this answer assumes that southeast states are Mississippi, Alabama, Florida, Georgia, South Carolina, North Carolina and Virginia. All have ocean coasts. If you add Kentucky and Tennesee to the list, they have river coasts.

When asking a question, it is a good idea to be a specific as you can.