In a news release Thursday, police did not name the union in question, but said the labour group had discovered anomalies during an internal audit.
Following an internal investigation, the group submitted a complaint to the police service.
According to police, the accused woman wrote herself about 50 cheques for a combined total of more than $19,000 while she served as the union’s interim president and treasurer.
Ottawa police said Margarita Faundez is wanted for fraud over $5,000 and laundering proceeds of crime.
Police urge anyone with information about Faundez’s whereabouts to email the case’s lead investigator at email@example.com or to submit an anonymous tip to Crime Stoppers.