Bonne Nouvelle is a station on Lines 8 and 9 of the Paris Métro. The section of both lines from just east of Richelieu – Drouot to west of République was built under the Grand Boulevards, which replaced the Louis XIII wall and is in soft ground, which was once the course of the Seine. The lines are built on two levels, with line 8 on the higher level and line 9 in the lower level. The platforms are at the sides and the box containing the lines and supporting the road above is strengthened by a central wall between the tracks. There is no interconnection between the lines at Bonne Nouvelle, with each level having different accesses to the street; however, passengers may pass between levels in order to make connections.

Paris Métro Line 8 is one of the sixteen lines of the Paris Métro. It connects Balard in the southwestern part of Paris to Pointe du Lac station in the southeastern suburbs, following a parabolic route on the Rive Droite of the Seine. The last line of the original 1898 Paris Métro plan, which opened in July 1913, it was initially intended to link Porte d'Auteuil and Opéra. With 105.5 million travellers in 2017, it is the network's eighth busiest line; at 23.4 km (14.5 mi) in length, it is also the second longest Métro Line after Line 13, and the longest fully straight line, as line 13 has branches. Along with Line 7, it serves the most stations of any line on the network, at 38. Line 8 interchanges with all but three other Métro lines.