Tavallodet Mobarak -
Tavalodet mobarak (تولدت مبارک).
The last syllable is pronounced like "et" in "et cetera". Tavallodet Mobarak
Iranians have a specific birthday song, often sung to a lively, upbeat tune. The most famous lyrics repeat the phrase: Tavalodet mobarak (تولدت مبارک)
Depending on whom you are addressing, you may want to vary your greeting: often sung to a lively