Boo church, Church building in Nacka Municipality, Sweden.

Boo church is a three-aisled basilica designed by Martin Hedmark and inaugurated in 1923, with a tower to the west and a semi-circular choir to the east. Its frame is brick, the outer walls are plastered and pale yellow, and a vaulted sacristy lies beneath the choir. Inside, the floor is laid with patterned tile, the central nave has an open roof truss and the side aisles flat wooden ceilings.

Boo church was built to Martin Hedmark's designs and inaugurated in 1923, replacing a wooden chapel at Boo gård that Nicodemus Tessin the Younger had designed in 1724 after Russian troops burned an earlier chapel in 1719.

The name Boo comes from Boo gård, the manor whose wooden chapel the church replaced. Inside, the pulpit paintings by Olle Hjortzberg show Martin Luther and Olaus Petri, and the 1989–1990 Nye organ has a stop called birdsong. The granite font was carved to Martin Hedmark's own drawings, modelled on medieval fonts.

The church stands just north of Värmdövägen in Ormingelandet, Nacka. The main entrance is through the west tower, and the choir with the vaulted sacristy beneath it lies at the east end. The interior is entered at ground level; the patterned tile floor and the open roof truss of the central nave are best seen in daylight.

The pulpit paintings by Olle Hjortzberg depict Martin Luther and Olaus Petri, and the 1989–1990 Nye organ includes a stop named birdsong. The granite font was carved to the architect's own drawings, modelled on medieval fonts.