The Texan has reportedly been offered to the Bhoys by an intermediary with close ties to Celtic Park chief Brendan Rodgers.
Celtic manager Brendan Rodgers
Onyewuenyi was linked with a move to English champions-elect Chelsea in March, although it is now claimed the Blues are 'dilly-dallying' over offering the Texan a trial at Stamford Bridge, preferring instead to monitor him where he his.
But All Nigeria Soccer reports that Celtic have been alerted to Onyewuenyi in the meantime, by an intermediary with close ties to Bhoys boss Brendan Rodgers.
And Celtic may have to move fast if they do decide to pursue the 18-year-old, with Scandinavian clubs said to be 'keeping tabs on his situation'.
Despite the apparent clamour for his services, Onyewuenyi has only made three starts for Dynamo's Under-18s this season and is not yet tied to a professional contract with Wilmer Cabrera's side.
Portland Timbers midfielder Darlington Nagbe (left)
He is not the first American-based player to be linked with a move to Celtic this season, with Darlington Nagbe and Cyle Larin previously said to feature on the Bhoys' radar.
Should Celtic take a punt on Onyewuenyi?