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Cassian

The name Cassian peaked for girls at #10467 in 2023. Cassian is also used for boys, ranking #479 in 2025.

The name Cassian is a boy's name of Latin origin meaning "hollow".

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Rugged but gentle at the same time, Cassian is a saintly and stylish choice that was derived from the name Cassius. Before 2017, it was an obscure choice, given to a tiny handful of boys each year. As of 2023, however, it's become one of the top ten fastest-rising names in the US, more than doubling in usage since 2022 and edging closer towards the Top 500.
 There are a number of fourth and fifth century St. Cassians, one of whom is the patron saint of stenographers (though he must not get much work these days).John Cassian was a monk and ascetic writer who introduced Eastern monasticism into the West; Cassian Elwes is a British film producer, and Patrick Wilson used the alternate spelling Kassian for his son.
 It is unlikely however, that any of these can be credited for the rise of Cassian. Instead, we must turn to pop culture.
 In 2016, just before Cassian began to climb the charts, the Star Wars Franchise movie, Rogue One, was released and included a character called Cassian Andor, who then went on to feature as the lead in the television spinoff series, Andor. With the sounds of popular Julian, Jasper, and Adrian, like Casper but not too ghostly, Cassian caught people's attention, not just in the US, but in the UK, where it now ranks in the Top 600.
 
But what caused the even bigger leap up the charts in 2023? Again, we must look towards a fictional character. The popular romance-fantasy book series A Court of Thorns and Roses by Sarah J. Maas features a Cassian, and the latest novel included a Cassian storyline that likely put the name on people's radar. "ACOTAR" as it gets called is popular on BookTok and BookTube so it's no wonder parents are taking inspiration from it. 
 
Another new pop culture influence: the Star Wars-related TV show Andor, whose main character is named Cassian Andor. Cassian is obviously a timeless name with ancient roots that sounds fresh today -- though maybe not for long.
 Similar to Nameberry favorite Caspian with sounds that are both strong and soft, both ancient and right up to date, Cassian is a hot name right now, and was given to more than 550 babies in 2023.

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The name Cassian is currently ranked #479 in U.S. births. and peaked for boys at #479 in 2025. The name is most popular in CASSIAN, CASSIAN, and CASSIAN. Cassian is occasionally used for girls in 2023.

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