A3 motorway (Serbia)

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Autoput A 3
Serbian: Autoput A3 Serbian Cyrillic: Аутопут А3
Route information
Part of E70
Maintained by JP "Putevi Srbije"
Length	92.5 km (57.5 mi)
Major junctions
From	A3 E70 at Batrovci border with Croatia
Major intersections	21 A8 at Ruma
To	A1 E75 (Belgrade bypass) at Dobanovci interchange
Location
Country	Serbia
Major cities	Sremska Mitrovica, Ruma, Belgrade
Highway system
Roads in Serbia Motorways
← A2 → A4

The A3 motorway (Serbian: Аутопут А3, romanized: Autoput A3) is a motorway in Serbia which spans approximately 92 kilometers (57 mi) and is part of the European route E70 through Serbia. It crosses the Syrmia region from east to west, starting at Belgrade and ending at the border crossing with Croatia.