Lowther Hall Anglican Grammar School, most often referred to simply as Lowther Hall, is a private, comprehensive single-sex primary and secondary day school for girls, located in Essendon, an inner suburb of Melbourne, Victoria, Australia.

At the centre of the school is "Earlsbrae Hall", commonly referred to by students, parents and staff as "The Mansion".

There is also a hall, named the Joan M Garde Cultural Centre, which houses dance and drama classrooms, private music rooms, a lecture theatre, changerooms, a stage, and sports offices.

The Noelene Horton Centre focuses on the sciences over three levels, one of which is a rooftop learning area and the basement houses dance and music.

Blinkbonnie House was opened in February 2018 and provides new amenities for students who are in Kindergarten, Prep and Year 1.

Lowther has gained a reputation in the hip-hop dance sport area, with teams in state and national finals.

Students perform regularly at many events such as the Carol Service at St Paul's Cathedral, Eisteddfods, Mt Gambier Generations in Jazz Festival, the annual 'Evening of Song' concert, Winter String Festival, Paris Cat Jazz Gigs, Assemblies, Chapel, Concerts and many public performances.

The girls alternate with the traditional choir of boys and men, which has been leading choral services at St Paul's since 1888.