Moin
Lorelei,
Lulu in Germany and the Netherlands is a short form for names beginning with Lu- like
Luise,
Lucia, Lukrezia, Lus, Ludwika etc.
Then there is an Arabic name Lulua meaning "pearl" and a Native American (don't know which language exactly...) name
Lulu meaning "hare". That's all I could find.
Regards,
Satu