| Type: | bishop |
| Honorific-Prefix: | His Excellency, The Most Reverend |
| Adolph Marx | |
| Bishop of Brownsville | |
| Church: | Catholic Church |
| Appointed: | July 9, 1965 |
| Term Start: | September 2, 1965 |
| Term End: | November 1, 1965 |
| Successor: | Humberto Sousa Medeiros |
| Ordination: | May 2, 1940 |
| Consecration: | October 9, 1956 |
| Consecrated By: | Mariano Simon Garriga |
| Birth Date: | 18 February 1915 |
| Birth Place: | Cologne, Germany |
| Death Place: | Cologne |
| Ordained By: | Emmanuel Boleslaus Ledvina |
Adolph Marx (February 18, 1915 – November 1, 1965) was a German-born prelate of the Roman Catholic Church. He served as the first bishop of the Diocese of Brownsville in Texas from September to November 1965. He previously served as an auxiliary bishop of the Diocese of Corpus Christi in Texas from 1956 to 1965.
Adolph Marx was born on February 18, 1915, in Cologne, Germany. He was ordained a priest by Bishop Emmanuel Ledvina for the Diocese of Corpus Christi on May 2, 1940.
On July 6, 1956, Pope Pius XII appointed Marx as an auxiliary bishop of the Diocese of Corpus Christi; he was consecrated on October 9, 1956, by Bishop Mariano Garriga.
On July 9, 1965, Pope Paul VI appointed Marx as bishop of the Diocese of Brownsville; he was installed on September 2, 1965.
Adolph Marx died in Cologne while on a visit on November 1, 1965, at age 50.[1]