Thomas Shanahan (4 January 1864 â 18 May 1907) was an Irish international rugby union player.
A native of County Waterford, Shanahan was a pacy forward who played well in the loose. He competed with Lansdowne and gained six caps for Ireland during the 1880s. This included a history making match against Wales at Lansdowne Road in 1888, which Shanahan played as a wing forward, and was instrumental in securing their first ever win over the Welsh.
Shanahan, a medical practitioner, died of pneumonia in 1907, aged 43.