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.

The span was originally given route code E22 but later changed to E28, and E22 was used by Senai–Desaru Expressway. To reduce the cost of construction, its design was modified to resemble Penang Bridge. The project was completed with a major loan from China, in an effort to maintain the economic relationship between the two nations. The Penang Second Bridge was officially opened on 1 March 2014 and was named after the fourteenth Yang di-Pertuan Agong, Sultan Tuanku Abdul Halim Muadzam Shah of Kedah.