What does Magnus mean?
Magnus \mag-nus\ as a boys' name is pronounced MAG-ness. It is of Latin origin, and the meaning of Magnus is "great". A royal name in Norway and Denmark; also a saint's name. The name was introduced from Scandinavia to Scotland.
For more information, see also the related boy name Maxwell.
Magnus is an unusual given name for males but a very prominent surname for all people (#12938 out of 150436, Top 9%). (2000 U.S. Census)
Shown below is the baby name popularity of Magnus for boys. Magnus entered the list in 1900-1909 and reached its highest position of #902 in the U.S. then, and is at #977 currently. (Top 1000 Baby Names Records, 2014)
Below is a graphed analysis of the usage of Magnus and related names. The only other prominent alternative form of Magnus (#977 in 2014) is Maxwell (#107 in 2014). These boy names reached the peak of their popularity in 2013 (usage of 0.4675%) and are almost as popular today (usage 0.458%, down 2%). Maxwell (#107) is the most trendy birth name here, and there is also a resurgence in baby name popularity for this name. (Top 1000 Baby Names Records, 2014)
A recommended similar baby name is Magus. Like Magnus, this name is not frequently used.