The 1878–79 Home Nations rugby union matches are a series of international friendlies held between the England, Ireland and Scotland national rugby union teams.
The only recognised competition held between the countries was the inaugural Calcutta Cup match, contested between England and Scotland.
If a game was drawn, any unconverted tries were tallied to give a winner.
If there was still no clear winner, the match was declared a draw.
Ireland: RB Walkington, T Harrison, JC Bagot, RN Matier, AM Whitestone, WJ Goulding, WEA Cummins, AM Archer, HC Kelly, W Finaly, JA McDonald, JW Taylor, WC Neville capt., G Scriven, H Purdon Scotland: Bill Maclagan, Malcolm Cross, Ninian Finlay, WH Masters, James Campbell, Robert Ainslie, DR Irvine, JB Brown, D. Somerville, RW Irvine capt., AG Petrie, JHS Graham, Henry Melville Napier, NT Brewis, ER Smith Scotland: Bill Maclagan, Malcolm Cross, Ninian Finlay, John Alexander Neilson, James Campbell, Robert Ainslie, Duncan Irvine, JB Brown, EN Ewart, RW Irvine capt., AG Petrie, JHS Graham, Henry Melville Napier, NT Brewis, JE Junor England: WJ Penny, H Huth (Huddersfield), L Stokes, WAD Evanson, HH Taylor, HH Springman, S Neame, Frank Reginald Adams capt., FD Fowler, A Budd, G Harrison (Hull), George Burton, HC Rowley, Roger Walker, NF McLeod England: WJ Penny, WAD Evanson, L Stokes, HT Twynam, WE Openshaw, Harold Dingwall Bateson, S Neame, Frank Reginald Adams capt:, JM Biggs, A Budd, G Harrison (Hull), GW Burton, HC Rowley, Edward Temple Gurdon, NF McLeod Ireland: WW Pike, WJ Willis, JC Bagot, J Heron, AM Whistestone, BN Casement, JR Bristow, F Schute, HW Murray, W Finaly, JJ Keon, JL Cuppaidge, WC Neville capt., G Scriven, H Purdon