The Guardian reports that Lamy won the final round of consultations Friday after Carlos Perez Del Castillo of Uruguay, his only remaining rival, dropped out. Two other candidates dropped out after earlier rounds.
The WTO's general council is scheduled to meet May 26 to take a formal vote, with at least 100 of the 148 member states expected to send representatives.
Lamy, during his time at the EU, urged the richer countries to avoid using trade barriers to keep out the products of poor ones.
He takes over at the WTO in August from Supachai Panitchpakdi of Thailand.