Dennis Ang Uy[1] (Chinese: 黃書賢; Pe̍h-ōe-jī: N̂g Chu-hiân; pinyin: Huáng Shūxián;[2] born September 26, 1973[3]) is a Filipino businessman, government official, and diplomat.

[5] In 1993, Uy studied in De La Salle University in Manila to pursue a Bachelor of Science in Business Management degree and started to trade in the stock market.

[6] After finishing his tertiary education, Dennis Uy helped ran his family's business and interacted with older businessmen.

He started his own business using income he gained from trading stocks while he was still in college and set up Dencio's Kamayan, a barbecue store (which shares the same name but unrelated to a Manila-based restaurant chain).

Udenna secured permission from the Philippine Amusement and Gaming Corporation to develop a casino resort in Mactan, Cebu.

[10] Atok-Big Wedge Co, Inc. a listed corporation in PSE, has 20% ownership of United Kingdom-based Forum Energy Ltd. which has the right of oil exploration in SC72 in the South China Sea.

[11] In September 2024, Uy sold Conti’s Bakeshop & Restaurant and Wendy’s Philippines, with his Eight8Ate Holdings Inc., to entrepreneur Crystal Jacinto.

[15] Dennis Uy is married to Cherylyn Chiong who is a graduate of La Salle Academy, Iligan in high school and Business and Finance from the Ateneo de Davao University with whom he has three children; two daughters[5] and a son.

[7] In 2021, a graft complaint was filed before the Ombudsman against Uy, Alfonso Cusi and several others over the sale of Chevron's investment in the Malampaya project to Udenna Corporation, wherein the anomalies allegedly resulted in losses to the government.