Conor McGregor is due in court in Ireland on October 11th -- and according to local reports, it's to face an assault charge stemming from that pub attack back in April.
TMZ Sports broke the story ... Conor walked in to the Marble Arch Pub in Dublin on April 6 and punched a patron in the face after he refused a shot of Conor's Irish whiskey.
Cops investigated the incident and now a spokesperson for the Irish police tells us a court date has been set in the case.
Conor is facing one count of assault, according to the Irish news outlet The Independent, which carries a maximum 6 month jail sentence if convicted.