Sultan Abdul Halim Highway
{{Unreferenced|date=May 2019|bot=noref (GreenC bot)}}
{{Infobox road
| country = MYS
| type = Federal
| route = 1
| alternate_name = Sultan Abdul Halim Highway
| length_km =
| direction_a = North
| terminus_a = Alor Setar
| junction = {{JKR|1}} Darul Aman Highway
{{JKR|78}} Kuala Kedah Highway
{{JKR|7}} Alor Setar Bypass
{{MES-E|1}} {{Jct|country=ASIA|AH|2}} North–South Expressway Northern Route
{{JKR|1}} Federal Route 1
| direction_b = South
| terminus_b = Alor Setar South
| destinations = Kota Sarang Semut
Gurun
Sungai Petani
}}
Sultan Abdul Halim Highway, Federal Route 1, is a broad and busy road link to Alor Star, Kedah, Malaysia via the North South Expressway (NSE) from Kuala Lumpur and Penang. It was named after Sultan Abdul Halim of Kedah.
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List of interchanges
{{RJL|date=November 2021}}
| class="wikitable" | ||||
| km||Exit||Interchange||To||Remarks | ||||
|---|---|---|---|---|
| Alor Setar | Masjid Zahir Balai Nobat Istana Lama | T-junctions | ||
| Sungai Kedah Bridge | Wan Mat Saman's Aqueduct monument | |||
| Kampung Seberang Perak | West Kampung Seberang Perak Dr Mahathir Mohammad Birthplace | T-junctions | ||
| Pekan Simpang Kuala | West {{JKR|78}} Kuala Kedah Highway Kuala Kedah Langkawi Island East {{JKR|K138}} Jalan Alor Mengkudu Alor Mengkudu | Junctions | ||
| Alor Setar South | Northwest {{JKR|7}}Alor Setar Bypass {{JKR|7}}Kangar {{JKR|78}}Kuala Kedah East {{Jct|country=MYS|E2|1}} {{Jct|country=ASIA|AH|2}} North–South Expressway Northern Route Bukit Kayu Hitam Penang Ipoh Kuala Lumpur | Junctions | ||
| South {{JKR|1}}Sungai Petani {{JKR|1}}Gurun {{JKR|1}}Kota Sarang Semut |