Ilar is an ancient Scandinavian male given name, derived from the Old Norse elements 'il' meaning 'ice' and 'arr', which signifies 'warrior'. It was particularly popular among the early medieval Norse people.
"Between 1914 and 1922, the name Ilar was given to a total of 30 babies, with peaks in popularity in 1917 and 1921, when it was chosen for 7 and 6 newborns respectively."