Organizers say they are certain that at least 10,317 people took part in the procession, walking two kilometers over the newly built E4 bridge as they carried torches.
Local media report that this means they beat the record set in Jakarta, Indonesia, in 2011, when 3,690 people gathered for a torch-lit parade. However, in order for the record to be official, the Guiness Book of World Records needs to approve it.
"It was really cool, a little chilly for the hands, but otherwise, really cool," said Johan Wallström, one of the participants, to Swedish Radio P4 Västernorrland, as he waited for a bus to take him back over the bridge after the parade.
Sweden's festival of light is celebrated with processions of people who sing about bringing light in the darkness. At the very front walks the Lucia, with a crown or a wreath of candles on her head.