William McFadzean | |
|---|---|
 | |
| Nickname(s) | "Billy" |
| Born | 9 October 1895 Lurgan, County Armagh, Ireland |
| Died | 1 July 1916 (aged 20) Thiepval, France |
| Allegiance |  United Kingdom |
| Service/ |  British Army |
| Years of service | 1914–1916 |
| Rank | Private |
| Unit | 14th Battalion, The Royal Irish Rifles |
| Battles/wars | First World War |
| Awards | Victoria Cross |
William Frederick McFadzean VC (9 October 1895 – 1 July 1916) was a British recipient of the Victoria Cross (VC), the highest and most prestigious award for gallantry in the face of the enemy that can be awarded to British and Commonwealth forces. He was posthumously awarded the VC for his actions on the opening day of the Battle of the Somme.