| Official Name: | Suao Township |
| Native Name: | 蘇澳鎭 |
| Other Name: | Suō, Su'ao, Su-ao |
| Settlement Type: | Urban township |
| Mapsize: | 250px |
| Subdivision Type: | Country |
| Subdivision Name: | Taiwan |
| Subdivision Type1: | County |
| Subdivision Name1: | Yilan |
| Leader Title: | Mayor |
| Area Total Km2: | 89.01 |
| Population As Of: | September 2023 |
| Population Total: | 37602 |
| Timezone: | Chungyuan Standard Time Zone |
| Utc Offset: | +8 |
| Coordinates: | 24.5961°N 121.8511°W |
| Postal Code Type: | Postal code |
| Postal Code: | 270 |
Suao Township, alternately romanized as Su-ao or Su'ao, is located in southern Yilan County, Taiwan, is an urban township that is famous for its seafood restaurants and cold springs.[1] It is a terminus of National Highway No. 5, the Suao-Hualien Express Way, and the North-Link Line of the Taiwan Railway Administration. It also has two large harbors: Suao Port, a multi-function seaport that also houses a naval base; and Nanfang-ao Port, a major fishing port of Taiwan.
During Japanese rule, the area was established as, Suō District, Taihoku Prefecture.[2]
After World War II, the town was converted to a township under Taipei County. In 1950, the township was put under the newly established Yilan County.[2]
As of September 2023, Suao had 14,533 households and a total population of 37,602, including 18,520 females and 19,082 males. The population of Suao Town has been decreasing on average since 1981.[3]
The township comprises 26 villages: Aiding, Cunren, Dingliao, Gangbian, Longde, Nanan, Nancheng, Nanjian, Nanning, Nanqiang, Nanxing, Nanzheng, Shengai, Shenghu, Subei, Sunan, Sutung, Suxi, Tungao, Xincheng, Yongchun, Yongguang, Yongle, Yongrong, Zhangan and Zhaoyang.[3]
Suao has a humid subtropical climate (Köppen Classification Cfa).