Gallagher, of East Finchley, north London, is accused of rape, coercive and controlling behaviour, three counts of sexual assault, three counts of intentional strangulation, two counts of making a threat to kill, and assault occasioning actual bodily harm.
The alleged offences are claimed to have taken place between 2022 and 2024, the charge sheet showed.
During a five-minute hearing at Westminster Magistrates’ Court on Wednesday, Gallagher spoke to confirm his name, age and address, but entered no pleas.
He has been bailed for a further appearance at Harrow Crown Court on 24 September.
Gallagher, who is a year older than Noel and seven years older than Liam, has never been involved in Oasis.