I never made the connection between Annabelle and Rosemary’s Baby, but, once it was laid out before me, I cannot believe I missed it. Might explain why I enjoyed Annabelle so much.
ScreenRant explains Annabelle‘s homage to Rosemary’s Baby:
“Several references to the classic horror film Rosemary’s Baby are alluded to in Annabelle. For instance, the protagonists are named John and Mia after John Cassavettes and Mia Farrow, the stars of the horror classic. John and Mia also name their daughter Leah, the same name as one of the neighbors in the 1968 film.


“In addition, the plot closely resembles Rosemary’s Baby. Both films center on a couple living in an upscale apartment while expecting a baby, as a host of satanic neighbors plotting to overtake the mother and her child. Moreover, the sound cues of the neighboring apartment are directly taken from Rosemary’s Baby.”
Find more facts about the Annabelle series at The Annabelle Series: 10 Creepy Facts About The Conjuring Spin-Off.