The 24-year-old singer was spotted in Los Angeles Monday wearing a necklace that spelled out "Angelo" in gold lettering.
"Those close to Adele have been told the baby is called Angelo. We’re not sure of the significance of the name," a source told The Sun.
Adele, engaged to philanthropist Simon Konecki, gave birth to a boy in October. She's kept the baby name under wraps saying it was too personal to reveal just yet.
"I am not sharing his name at the moment. It is very personal to me," she told People at the Golden Globe Awards. "I am enjoying him on my own."