The Sultan Abdul Halim Muadzam Shah Bridge (Malay: Jambatan Sultan Abdul Halim Muadzam Shah), also known as the Penang Second Bridge (Jambatan Kedua Pulau Pinang), is a dual carriageway toll bridge in Penang, Malaysia. It connects Bandar Cassia (Batu Kawan) in Seberang Perai, Peninsular Malaysia, with Batu Maung on Penang Island. It is the second bridge to link the island to the mainland after Penang Bridge.
The total length of the span is 24 km (15 mi) with 16.9 km (10.5 mi) over water, making it the longest bridge in Malaysia and the second longest in Southeast Asia, behind the 30 km (19 mi) Sultan Haji Omar Ali Saifuddien Bridge in Brunei. China Harbour Engineering Company in November 2007 and complete the project in 2011, but the completion date was postponed to May 2012 and later to February 2014. Construction started in November 2008.