Maria Luciani (in religious life, Sr. Maria Addolorata del Sacro Costato) was a professed religious of the Congregation of the Nuns of the Passion of Jesus Christ.

The characteristic spirituality of Sr. Maria Addolorata was characterized by the offering of her life in order to be conformed to Jesus Crucified. This was demonstrated in her total and unconditional acceptance of her physical sufferings, of which she willingly spoke and wrote, so that everyone would know about her great love for Jesus.
She was declared Venerable in 2018.