The United Wa State Army (Chinese: 佤邦联合军; pinyin: Wǎbāng Liánhéjūn; Burmese: ဝပြည် သွေးစည်းညီညွတ်ရေး တပ်မတော်, IPA: [wa̰ pjì θwésí ɲìɲʊʔjé taʔmədɔ̀]), abbreviated as the UWSA or the UWS Army, is the military wing of the United Wa State Party (UWSP), the de facto ruling party of Wa State (officially known as the Wa Self-Administered Division) in Myanmar. It is an ethnic minority army of an estimated 20,000–25,000 Wa soldiers, led by Bao Youxiang. The UWSA was formed after the collapse of the armed wing of the Communist Party of Burma (CPB) in 1989.

The UWSA announced its territory as the "Wa State Government Special Administrative Region" on 1 January 2009. The de facto President is Bao Youxiang, and the Vice President is Xiao Minliang. Although the Government of Myanmar does not officially recognise the sovereignty of Wa State, the Tatmadaw (Myanmar Armed Forces) has frequently allied with the UWSA to fight against Shan nationalist militia groups, such as the Shan State Army - South.

Despite being de facto independent from Myanmar, the Wa State officially recognizes Myanmar's sovereignty over all of its territory. In 1989 the two parties signed a ceasefire agreement, and in 2013 signed a peace deal.