Sael is of Germanic origin, derived from the Old Norse elements "sál" meaning "spirit" or "soul", and "hildr" signifying "battle". This name was borne by a historical figure, Sæla, a legendary Norse king in medieval Icelandic literature. The name Sael has gained popularity in recent times as a unique and distinctive given name for children. It is pronounced /ˈseɪəl/.
The name Sael experienced a notable increase in popularity over time, with the number of births nearly tripling from 6 in 2003 to 31 in 2023. The highest point was reached in 2023, while the lowest occurred in 2003 and 2008 with only 6 births each year.