This list only names correspondents where one or more letters from Southey to that individual have survived, either in manuscript or in published versions.
It does not name individuals to whom Southey is known to have written during the period 1791-1827 when the resulting letters have not survived in either manuscript or previously printed versions.
- Abella, Manuel
- Acland, Sir Thomas Dyke
- Adamson, John
- Aikin, John [as Editor of the Monthly Magazine and, later, The Athenaeum]
- Amyot, Thomas
- Atherstone, Edwin
- Atkins, Edward Erasmus
- Attersoll, Ann
- Baillie, Joanna
- Baird, George
- Ballantyne, James
- Ballantyne, John
- Barham, Thomas Foster
- Barker, Mary
- Barton, Bernard
- Beaumont, Sir George
- Beaumont, Margaret, Lady
- Bedford, Grosvenor Charles
- Bedford, Horace Walpole
- Beesley, Alfred
- Bell, Andrew
- Bell, John
- Benson, Christopher
- Betham, (Mary) Matilda
- Bicknell, John Laurens
- Biddlecombe, Charles
- Bilderdijk, Willem
- Bill, Robert
- Bloomfield, Robert
- Boucher, Jonathan
- Bounden, Joseph
- Bowles, Caroline
- Bowles, William Lisle
- Bowring, John
- Britton, John
- Brockett, John Trotter
- Broome, Charlotte
- Brougham, Henry
- Browne, Elizabeth
- Browne, Sarah
- Browne, Wade
- Bruce, William
- Brugière, Antoine André, Baron de Sorsum
- Brydges, Sir (Samuel) Egerton
- Bunbury, Henry Edward, 7th Baronet
- Burney, James
- Busk, Hans
- Butler, Charles
- Butler, Eleanor
- Canning, George
- Cattermole, Richard
- Cawood, John
- do Cenáculo, Manuel, Bishop of Beja
- Chantrey, Sir Francis Legatt
- Chapman, John
- Charlotte Augusta of Wales, Princess
- Clarke, Adam
- Colburn, Henry
- Coleridge, (David) Hartley
- Coleridge, Derwent
- Coleridge, George
- Coleridge, John Taylor
- Coleridge, Samuel Taylor
- Collins, Charles
- Conder, Josiah
- Cottle, Amos
- Cottle, Joseph
- Courtenay, Thomas Peregrine
- Coxe, William
- Craufurd, Charles Gregan
- Croker, John Wilson
- Cunningham, Allan
- Dallas, Alexander Robert Charles
- Dalrymple, Hew Whitefoord
- Danvers, Charles
- Dauncey, Louisa
- Davy, Humphry
- De Clercq, Willem
- De Quincey, Thomas
- Dibdin, Thomas Frognall
- D’Israeli, Isaac
- Douce, Francis
- Doyle, Sir Charles William
- Duppa, Richard
- Dusautoy, James
- Dyer, George
- Edwards, Mr
- Elliott, Ebenezer
- Elmsley, Peter
- Erskine, Henry
- Estlin, John Prior
- Estlin, Susanna
- Evans, Greeton
- Everett, Edward
- Feldborg, Andreas Andersen
- Fisher, Henry
- Fox, Henry Richard, Lord Holland
- Frere, Bartholomew
- Frere, John Hookham
- Fricker, Edith [from November 1795, Edith Southey]
- Fricker, Eliza
- Fricker, Sarah [from October 1795, Sara(h) Coleridge]
- Garnett, Richard
- Gibson, John
- Gifford, William
- Gillies, Robert Pearse
- Gooch, Robert
- Gooden, James
- Goodenough, Edmund
- Grahame, James
- Grant, Anne
- Greenough, George Bellas
- Hall, Samuel Carter
- Hamond, Elton
- Hare, Julius Charles
- Hartwell, Aaron
- Haslewood, Joseph
- Haydon, Benjamin Robert
- Hays, Mary
- Heber, Richard
- Heathcote, William
- Heraud, John Abraham
- Hill, Edward
- Hill, Herbert
- Hill, Thomas
- Hodson, Margaret Holford
- Hogg, Edward
- Hogg, James
- Holroyd, John Baker, 1st Earl of Sheffield
- Holworthy, Samuel
- Horseman, John
- Howley, William
- Hughes, Mary Ann Watts
- Hussey, Arthur
- Hutchinson, Sara
- Inglis, Robert Harry, 2nd Baronet
- Jackson, Thomas
- James, Harry
- Jebb, John
- Jenkinson, Robert Banks, 2nd Earl of Liverpool
- Jennings, James
- Jensort, H. S.
- Kelly, Thomas W.
- Kennaway, Charles
- Kenyon, John
- King, John
- Knighton, Sir William
- Knowles, Herbert
- Koster, Henry
- Koster, John Theodore
- Laing, David
- Lamb, Thomas Davis
- Lamb, Thomas Phillipps
- Landor, Robert Eyres
- Landor, Walter Savage
- La Touche, Thomas Digges
- Latrobe, Christian Ignatius
- Lawrence, Mary
- Lawrence, Thomas [as President of the Royal Academy]
- Leyden, John
- Lightfoot, Nicholas
- Littleton, Edward
- Lloyd, Charles [Senior]
- Locker, Edward Hawke
- Longman, Thomas Norton
- Longmire, John Martyn
- Losh, James
- Lovell, John Hill
- Lovell, Miss
- Lovell, Robert
- Lovell, Robert [Senior], and family
- Lowther, William, 1st Earl of Lonsdale
- Lundie, Robert
- Markland, James Heywood
- Marshall, John
- Mason, Henry Joseph Monck
- Maurice, Michael
- May, John
- Maynard, Miss
- Miller, John
- Mitford, George
- Mitford, John
- Moncreiff, James Wellwood, 9th Baronet
- Montagu, Anna
- Montgomery, James
- Moor, Edward
- Morgan, John James
- Morris, Robert
- Morris, William Richard
- Morrison, John
- Mudford, William [as Editor of the Courier]
- Murray, John
- Nash, Edward
- Nash, William
- Neale, Cornelius
- Nichols, James
- Nichols, John [as Editor of the Gentleman’s Magazine]
- Noel, Leland
- Opie, Amelia
- Palfrey, John Gorham
- Palgrave, Francis
- Parry, Caleb Hillier
- Peachy, William
- Pettet, Alfred
- Philip, Robert
- Phillips, Richard [as proprietor of the Monthly Magazine]
- Phillpotts, Henry
- Ponsonby, Sarah
- Poole, Thomas
- Pratt, Samuel Jackson
- Prosser, George Walter
- Pughe, William Owen
- Rees, Owen
- Rees, Thomas
- Reeve, Henry
- Reid, Samuel
- Relfe, Lupton
- Rickman, John
- Rickman, Susannah
- Roberts, Edward
- Robinson, Henry Crabb
- Rogers, Samuel
- Roscoe, William
- Ross, William
- Rouse, Robert
- Rudge, James Horace
- Rumney, John
- Rushton, Edward
- Saunders and Otley, Messrs [Saunders, Simon and Otley, John Edward]
- Scott, Walter
- Senhouse, Humphrey
- Seton, Barbara
- Seward, Anna
- Seward, Miss [a sister of Edmund Seward]
- Sharp, Richard
- Shelley, Percy Bysshe
- Shield, William
- Simpson, Samuel
- Smith, Grace
- Smith, Maria Woodruffe
- Smith, Thomas
- Smith, Thomas Woodruffe
- Smith, William
- Smith, William Hawkes
- Smyth, William
- Southey, Bertha
- Southey, Charles Cuthbert
- Southey, Edith May
- Southey, Henry Herbert
- Southey, Herbert
- Southey, Isabel
- Southey, Katharine
- Southey, Margaret
- Southey, Thomas
- Spafford, Horatio Gates
- Spedding, John
- Standert, Hugh Chudleigh
- Stanger, James
- Strachey, George
- Stuart, Daniel [as Editor of the Morning Post and, later, the Courier]
- Swan, Charles
- Tate, James
- Taylor, George
- Taylor, Henry
- Taylor, John
- Taylor, William
- Thomas, William Bowyer
- Thompson, Thomas
- Ticknor, George
- Tighe, Richard
- Tilbrook, Samuel
- Tobin, James Webbe
- Townshend, Chauncy Hare
- Treuttel and Wurtz, Messrs [Treuttel, John-Georges and Wurtz, John-Godefroy]
- Turner, Dawson
- Turner, Sharon
- Walker, William Sidney
- Walwein de Tervliet, Joseph Antoine
- Ware, John [as Editor of the Cumberland Pacquet and Ware’s Whitehaven Advertiser]
- Waring, Elijah
- Watts, Alaric Alexander
- Webb, William
- Westall, William
- White, Henry Kirke
- White, James
- White, (John) Neville
- White, Joseph Blanco
- White, Richard
- Wilberforce, William
- Wilkin, Simon
- Wilkinson, Thomas
- Williams, Helen Maria
- Wilson, Glocester
- Wilson, John
- Wordsworth, Christopher
- Wordsworth, Mary
- Wordsworth, William
- Wrangham, Francis
- Wynn, Charles Watkin Williams
- York, Richard