Sport reports that Barcelona have gathered information on the physically imposing midfielder, joining the two Italian giants in tracking his progress at academy level in recent months.
Ejodamen recently attracted wider attention after a moment of individual brilliance at the RondOm BZS Youth Trophy Cup in the Netherlands, where he struck a shot from inside his own half straight from kick-off and found the net, a moment that quickly spread on social media.
His qualities extend well beyond that viral moment, with scouts continuing to monitor his development in Dortmund's academy setup on a regular basis, both domestically and on the international stage.
Borussia Dortmund would ideally like to keep hold of the teenager, who has already broken several records at youth level for the club despite his age.
The growing interest reflects Dortmund's reputation as one of the leading destinations in Europe for developing young talent, having previously turned academy prospects into first-team regulars and lucrative transfers for the club in recent years, including the sale of Karim Adeyemi to Barcelona earlier this year.
Any move involving Ejodamen would not be immediate, given transfer regulations that prevent players holding European Union citizenship from completing international transfers before turning 16, meaning any interest for now remains at the observation stage.
The teenager's development will continue to be closely watched by all three of the clubs credited with interest as the season progresses, along with his performances for various youth national sides in the months ahead.
Dortmund have a track record of attracting talented young players from clubs across Europe, and the reported interest from Barcelona underlines the growing esteem in which the club's academy is held on the continent among Europe's leading recruitment departments.
The interest also comes amid a broader trend of Bundesliga academies losing highly-rated prospects to major European clubs before they have had the chance to break into senior first-team football.