The 17-year-old attacker, who has yet to make a senior appearance for the Reds, has joined Latics until the end of the season.
Ojo scored twice in his last appearance for his country, a 4-1 win over Poland in November, and has recently been included on Liverpool’s bench for their matches with Leicester City and Burnley.
Ojo scores twice for England U18s v Poland
He becomes Malky Mackay’s fifth signing of the transfer window.
The Wigan new-boy could be included in Neil Dewsnip’s England U18s squad for their first fixture of 2015 when they take on Switzerland at Walsall on Saturday 28 March, kick-off 5.30pm.
Tickets for the game are on sale now, priced £3 for adults and £1.50 for concessions.
Call 01922 651 414 or visit www.saddlers.co.uk to book your seat.