Bellatrix were an Icelandic rock group. The group was founded in 1992 in Keflavík as Kolrassa krókríðandi by four women, all aged sixteen: Eliza M Geirsdóttir (vocals and violin), Sigrún Eiríksdóttir (guitar), Ester Bíbí Ásgeirsdóttir (bass) and Birgitta Vilbersdóttir (drums). The band released the mini-album Drápa (Slaughter) in 1992. In 1994, they released Kynjasögur (Family Stories) with Anna Margrét Hraundal (guitar) and Karl Ágúst Guðmundsson (trumpet and keyboard) replacing Birgitta. Two years later, in 1996, they released Köld eru kvennaráð.

They also released Stranger Tales in 1995, which featured some English versions of Icelandic songs. This was also their first CD published under the name Bellatrix. This was followed by G in 1998 released on Global Warming Records. In 1999 they signed to Fierce Panda and released It's All True in 2000 under the name Bellatrix. Their single, "Jedi Wannabe", peaked at #65 in the UK Singles Chart in September 2000. They co-headlined a UK tour with Coldplay, but split up the following year.