Phone number of each person is ++(420)26605 + extension, fax number is ++(420)266053910, secretariat: (+420) 26605 2011, reception: (+420) 26605 3286
| Full name | Room | Extension | |
| JAKEŠ Daniel, Mgr. | 523 | 3055 | daniel.jakes jh-inst.cas.cz |
| JANDA Pavel, Ing., CSc. | 502, 05 | 3966, 2012 | pavel.jandajh-inst.cas.cz |
| JAŠÍK Juraj, RNDr., Ph.D. | 334 | 3625 | juraj.jasikjh-inst.cas.cz |
| JIRGLOVÁ Hana, Ing., Ph.D. | 317 | 3767 | hana.jirglovajh-inst.cas.cz |
| JIRKA Ivan, CSc. | 225 | 3465 | ivan.jirkajh-inst.cas.cz |
| JIRKOVSKÝ Jaromír, RNDr., CSc. | 617, 636 | 3737, 3747 | jaromir.jirkovskyjh-inst.cas.cz |
| JOSYPČUK Bohdan, Ph.D. | 511 | 3895 | bohdan.josypcukjh-inst.cas.cz |
| JURKIEWICZ Piotr, Mgr. , Ph.D. | 224 | 3495 | piotr.jurkiewiczjh-inst.cas.cz |
