| Type: | Bishop |
| Honorific-Prefix: | His Excellency, The Most Reverend |
| Luis Guillermo Eichhorn | |
| Bishop Emeritus of Morón | |
| Diocese: | Morón |
| Appointed: | 30 June 2017 |
| Term End: | 25 May 2022 |
| Predecessor: | Justo Oscar Laguna |
| Successor: | Jorge Vázquez |
| Birth Place: | Gilbert, Entre Ríos, Argentina |
| Death Place: | Gualeguaychú, Argentina |
| Coat Of Arms: | Coat of arms of Luis Guillermo Eichhorn.svg |
| Luis Guillermo Eichhorn | |
| Dipstyle: | |
Luis Guillermo Eichhorn (26 June 1942 - 25 May 2022) was an Argentine prelate of the Catholic Church.
Eichhorn was born in Gilbert, Entre Ríos, Argentina), son of Doña Emilia D' Angelo and Don Enrique Eichhorn.[1] He was ordained to the priesthood in 1968 at the Basilica of the Immaculate Conception of Uruguay.[1] He served as bishop of the Diocese of Gualeguaychú, Argentina, from 1996 to 2004 and as bishop of the Diocese of Morón, Argentina from 2004 until his retirement in 2017. Upon his retirement he was appointed Bishop Emeritus of Gualeguaychú.[2]
Eichorn died on 25 May 2022, at the age of 79.[3]