Norwegian striker Lauritsen, 24, has penned a three-year cope with the choice of an additional 12 months for a reported payment of £600,000.
Odds BK striker Lauritsen will end the primary half of the season in Norway earlier than becoming a member of Sparta on the finish of July.
Aberdeen goal Tobias Lauritsen has signed for Dutch prime flight membership Sparta Rotterdam.
Aberdeen had a bid of round £300,000 accepted for Lauritsen, who has scored 4 targets in 11 video games within the Norwegian prime flight this season.
Nonetheless the striker, who was contracted to Odds BK till December 31, has opted to maneuver to the Netherlands.
Aberdeen this week secured Macedonian worldwide striker Bojan Miovski in a €625,00 (£535,000) switch from Hungarian membership MTK Budapest.
Miovski, 23, will be part of Aberdeen on a four-year deal following profitable completion of the UK immigration course of.
Dons boss Jim Goodwin continues to be seeking to strengthen his attacking choices throughout the summer season switch window.
Lauritsen’s signing was a part of a double swoop on Odds BK by Sparta Rotterdam.
The Dutch membership additionally signed Lauritsen’s Odds BK team-mate Joshua Kitolano, 20, on a four-year contract.
Sparta Rotterdam Sporting Director Gerard Nijkamp was delighted to win the race to signal Lauritsen.
Nijkamp mentioned: “We knew that there have been additionally golf equipment in different international locations that want to take him over, so we’re completely satisfied that he selected Sparta.
“We have been in search of a striker that suited our taking part in fashion.