Silje is a Norwegian feminine given name, derived from the Old Norse word 'Sæljúg', which means 'successful voyage'. It gained popularity in Norway during the 1970s and 1980s but has since become less common. The name Silje is typically pronounced /'sɪl.jə/ in English, with the stress on the first syllable. It does not have any notable variations or diminutives. Some famous individuals named Silje include Norwegian singer Silje Nergaard and former Norwegian Minister of Education Kristin Clemet, born Silje Clemet.
The name Silje experienced a notable spike in popularity between 2013 and 2016, with the highest number of births recorded in 2014 (13). However, it has since seen a decline, with numbers falling back to single digits by 2017. Overall, there have been 64 babies named Silje born between 2002 and 2022.