| Type: | Bishop |
| Honorific-Prefix: | The Most Reverend |
Ignatius Arnoz | |
| Honorific-Suffix: | M.H.M |
| Vicar Apostolic of Bulawayo | |
| Province: | Bulawayo |
| Diocese: | Bulawayo |
| Appointed: | 1931 (Superior) 11 November 1932 (Prefect) 13 April 1937 (Vicar Apostolic) |
| Term Start: | 1931 |
| Term End: | 26 February 1950 |
| Predecessor: | Giovanni Matteo Konings |
| Successor: | Adolph Gregory Schmitt |
| Other Post: | Titular Bishop of Busiris |
| Ordination: | 25 July 1910 |
| Consecration: | 30 May 1937 |
| Consecrated By: | Antonin Alois Weber |
| Birth Name: | Ignatius Arnoz |
| Birth Date: | 1 April 1885 |
| Birth Place: | Bodenbach, Kingdom of Bohemia |
| Religion: | Roman Catholic |
| Dipstyle: | The Most Reverend |
| Offstyle: | Your Excellency |
| Relstyle: | Bishop |
| Ignatius Arnoz | |
Ignatius Arnoz,M.H.M. (1 April 1885 – 26 February 1950) was a Czech prelate of the Roman Catholic Church.
Ignatius Arnoz was born in Bodenbach, Bohemia, and ordained a priest on 25 July 1910 from the religious order of the Mill Hill Missionaries. In 1931 he was appointed Senior of the then Mission "Sui Iuris" of Bulawayo. Arnoz rose to Prefect and Vicar Apostolic as the mission was elevated. He was ordained bishop in 1937.