Fortress Hill (Chinese: 炮台山; pinyin: Pàotáishān; Cantonese Yale: Paautòisāan, literally Barbette Hill) is a station on the Island line of the Hong Kong MTR system. The station is located in the Fortress Hill section of Hong Kong on the eponymous island. Like all MTR stations, Fortress Hill has a unique colour scheme; its livery is dark green. The distance between this station and Tin Hau to the west is approximately 480 metres, the second-closest stations after Mong Kok and Prince Edward.

On 31 May 1985, Fortress Hill station opened with the first phase of the Island line. The station was built by Paul Y. Construction (now Paul Y. Engineering).

Fortress Hill is laid out in a manner similar to many other MTR stations. Passengers enter on the ground level and take escalators down to the concourse. From the concourse level they take another escalator ride down to the platform.

Platforms 1 and 2 are arranged in an island platform layout. In a similar manner to the deep-level London Underground stations, each track and platform is in a separate tube shaft with a common entrance and exit point between the two tubes. Each platform is equipped with platform screen doors for safety and ventilation reasons. As with most of the Island Line platforms, the platform walls are curved.

There are only four escalators that connect the concourse and the platforms; they are some of the longest in the MTR system.

G	Ground level	Exits
L1	Concourse	Customer service, MTR shops
		ATM
L3 Platform	Platform 1	→      Island line towards Chai Wan (North Point) →
	Island platform, doors will open on the right
	Entrance/exit vestibule
	Island platform, doors will open on the right
	Platform 2	←      Island line towards Kennedy Town (Tin Hau)

There are two exits at Fortress Hill station. Both are located on the same side of King's Road (英皇道) but on opposite ends of the Fortress Metro Tower, a high-rise residential complex.

• A: for the AIA Tower and Citicorp Centre
• B: for the Olympia Plaza and Electric Centre