Tihana (f) is a Croatian & Serbian name (although much more likely to be seen in Croatia!) meaning ‘quiet’. It’s pronounced TEE-kha-nah
A related name is Tihomir (m), pronounced TEE-kho-meer! It means “quiet peace” and it’s of South Slavic origin: so it’s not only Croatian & Serbian but also Bulgarian, Macedonian & Slovene.
Tijana (f) has two different origins: in Serbia & Croatia it originated as a variant of Tihana (so, meaning ‘quiet’), while in Slovenia as a variant of Tatjana (coming from the Latin family name). It’s pronounced tee-AH-nah and Tijana Bošković is a famous namesake!