| Name | Participants | Dates | Stamps | ||
| 20th Anniversary of Dipl..n San Marino and Croatia | 2 | (with San Marino) | 2012 | 4 | |
| 300th anniversary of the birth of Maria Theresa | 5 | (with Austria - Ukraine) | 2017 | 5 | |
| Bobbin Lace | 2 | (with Spain) | 2015 | 4 | |
| Joint issue Croatia-Romania | 2 | (with Romania) | 2014 | 4 | (incomplete) |
| Kažun & Hiška | 2 | (with Slovenia) | 2009 | 4 | |
| Woodpeckers - joint issue Croatia-Kyrgyzstan | 2 | (with Kyrgyzstan) | 2021 | 4 |