Inka's name day is May 19 in Croatia, October 5 in Finland.
Inka is a rare gem in the United States but maintains significant popularity in Finland and Germany. It is primarily a feminine name rooted in Old Norse traditions, often serving as a variant of names like Ingrid. The name conveys a nature-like and elegant mood, balancing a modern feel with ancient historical depth. Globally, it is appreciated for its short, melodic sound and its connection to Northern European heritage. This name remains a sophisticated choice for those seeking something both traditional and unique. It effectively blends a strong cultural identity with a soft and approachable personality.
| Country | Day | Month | Names |
 Bulgaria | 18 | January | Atanas, Atanaska, Nasko, Tanyu, Tinka, Jivko, Zhivko, Zhivka, Traian |
| Bulgaria | 5 | February | Dobrin, Dobrinka |
| Bulgaria | 25 | March | Blagovest, Blagovesta, Blagoi, Blaga, Blago, Blaguna, Bonka, Boncho, Marian, Mariana, Blazhe, Evangelina, Vangel, Dobri, Dobrina, Dobrinka |
 Finland | 11 | April | Verna, Minea, Minka |
| Bulgaria | 12 | April | Vencislav, Vencislava, Violeta, Varban, Girgin, Girgina, Dilyan, Dilyana, Zdravka, Zdravko, Latinka, Lilyana, Margarita, Nevena, Roza, Rosen, Rosica, Trendafil, Trendafilka, Tsvetan, Tsveta, Tsvetanka, Tsviatko, Tseno, Stanislav, Stanislava |
| Bulgaria | 6 | May | Georgi, Georgiya, Gergana, Gyuro, Galin, Galina, Galya, Ganka, Gancho, Genko, Genoveva, Gergin, Gergana, Gergina, Ginka, Zhorzh |
| Bulgaria | 21 | May | Elena, Konstantin, Kosta, Kostadin, Kostadinka, Lenko, Dicho, Lenko, Dinko, Elenko, Eli, Elin, Elka, Ilona, Kojcho, Kostadina, Kostadinko, Kuncho, Stamen, Stanimir, Stanimira, Stanka, Stoil, Stoyan, Stoian, Stoyanka, Trayko, Dinko |
 Norway | 27 | May | Cato, Katinka |
 Croatia | 5 | June | Bonifacije, Valerija, Darinka |
| Bulgaria | 15 | July | Vladimir, Vladimira, Vlada, Vladena, Gospodin, Gospodinka |
| Bulgaria | 27 | July | Dobra, Dobri, Dobrina, Dobrinka, Pancho, Panka, Kliment, Pantelei, Panko, Panto, Dobra |
| Croatia | 11 | August | Klara Asiška, Jasna, Jasminka |
| Bulgaria | 11 | November | Viktor, Viktoriya, Minka, Mincho, Mina, Minko |
| Bulgaria | 24 | November | Ekaterina, Katerina, Katina, Katya, Iasna, Yasna, Tinka |