- Viliam Karmazin
- Slovakia (Sered)
The longest career as a conductor is 76 years and was achieved by Viliam Karmazin (b. 23 September 1922, Slovakia), who began his career in 1936 and conducted his final concert for the ZVON choir in Sered, Slovakia, on 23 September 2012. Mr Karmazin has conducted for the ZVON choir since 1942.