Sepehr is an Iranian male given name that means "limitless" or "boundless". It originates from the Middle Persian language and is derived from the word 'spwh', which also forms the basis for the modern Persian words 'separ' meaning "to expand" or "to widen", and 'sepah' meaning "army" or "force". The name Sepehr is often associated with vastness, expansiveness, and strength. It is popular among Iranians and those of Iranian descent around the world, but it can also be found in other cultures due to its unique sound and meaning.
"Sepehr experienced a significant rise in popularity between 1998 and 2007, with eight births recorded during that decade. However, the name's popularity appears to have dipped slightly after 2009, with five or fewer births recorded each year until 2020, when it rebounded to seven births."