Si Lom station (Thai: สถานีสีลม, pronounced [sā.tʰǎː.nīː sǐː lōm]) is an underground station of the Bangkok MRT, on the Blue Line in Bangkok, Thailand. The station is located beneath Rama IV Road at Sala Daeng Intersection, where Si Lom Road begins, serving one of the city's main business districts.

Si Lom station is the 26th station on the Blue Line, lying between the Lumphini and Sam Yan stations on a section of the line running beneath Rama IV Road. It has been described as the most challenging to construct of the Blue Line, since it lies beneath the Thai–Japan Bridge that crosses Sala Daeng Intersection, requiring a complex underpinning process to replace the bridge's original foundations. The station features two vertically stacked platforms beneath the main concourse level, which is deeper than that of other stations to accommodate the bridge foundations. At a depth reaching 30 metres (98 ft), it is the deepest station in the MRT system, and features the longest escalator in Southeast Asia.

Si Lom station is connected to Sala Daeng BTS station by a covered elevated walkway, and forms one of the three original main links between the MRT and BTS systems. The station has two exits: one on the northeast corner of the intersection, near the entrance to Lumphini Park, and the other, which connects to the skywalk, on the south corner in front of the Dusit Thani Hotel (now under redevelopment).

FB Footbridge	-	Walk way to Sala Daeng BTS Station and King Chulalongkorn Memorial Hospital
G Ground floor	Street level	Bus Stop, Lumphini Park, Dusit Thani Hotel
B1 Concourse	Concourse Level	Exits 1–2, and Ticket Vending Machines
B2 Platform	Side Platform, Doors will open on the left.
	Platform 2	Blue towards Tha Phra via Bang Sue (Lumphini)
B4 Platform	Side Platform, Doors will open on the right.
	Platform 1	Blue towards Lak Song (Sam Yan)

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  The skywalk linking Si Lom station and Sala Daeng Station

13°43′45″N 100°32′15″E / 13.7292°N 100.5375°E / 13.7292; 100.5375