| Memorial of Slovak mathematicians — June | |
| 1. 6. 1982 | Josef Kaucký , died. |
| 4. 6. 1747 | Alexius Cörver , died. |
| 5. 6. 1851 | Karol Henrich Fuchs , was born. |
| 6. 6. 1904 | Vít Hejný , was born. |
| 6. 6. 1923 | Vladimír Piják , was born. |
| 6. 6. 1436 | Regiomontanus , was born. |
| 7. 6. 1754 | František Xaver Zach , was born. |
| 9. 6. 1903 | Augustín Paštéka , was born. |
| 10. 6. 1970 | Nikolaj Podtjagin , died. |
| 11. 6. 1901 | Peter Pavol Bartoš , was born. |
| 11. 6. 1976 | Alois Šmíd , died. |
| 13. 6. 1971 | Viktor Svitek , died. |
| 14. 6. 1903 | Corsan-Avendano Gabriel , died. |
| 15. 6. 1987 | František Krňan , died. |
| 15. 6. 1942 | Eliška Tomová , was born. |
| 17. 6. 1775 | Gabriel Csepcsányi , was born. |
| 18. 6. 1991 | Ján Perenčaj , died. |
| 18. 6. 1978 | Peter Štefan , died. |
| 19. 6. 1946 | Peter Capek , was born. |
| 21. 6. 1890 | Gabriel Čeněk , was born. |
| 22. 6. 1917 | Peter Svätokrížny , was born. |
| 25. 6. 1855 | Ladislav Fodor , was born. |
| 25. 6. 1920 | Ladislav Schramm , was born. |
| 29. 6. 1975 | Anton Dubec , died. |
| 29. 6. 1773 | Jozef Wolfstein , was born. |
| 30. 6. 1932 | Ladislav Moravský , was born. |
