Trần Nguyễn Thanh Đức (born 11 April 1997), known professionally as Plastique Tiara, is a Vietnamese-American drag performer, dancer, and model who competed on season 11 of RuPaul's Drag Race and season 9 of RuPaul's Drag Race All Stars. As an influencer with over 16 million followers across their platforms, Đức is the most-followed Drag Race alum on social media.

Đức was born in Ho Chi Minh City, and was raised in Vietnam by their grandparents. They are a first-generation American immigrant, moving to the United States at age 11.

Competing on season 11 of RuPaul's Drag Race in 2019, Plastique impersonated Lovely Mimi for the Snatch Game challenge and won the "Farm to Runway" design challenge. She was eliminated from the competition in the ninth episode, after placing in the bottom two of an acting challenge and losing a lip sync against Vanessa Vanjie Mateo to "Hood Boy" (2006) by Fantasia, placing eighth overall. After the show, she joined the Werq the World tour and the rotating cast of RuPaul's Drag Race Live!

In 2019, Plastique Tiara released the dance-pop song "Irresistible", along with a music video. Brendan Wetmore of Paper magazine described the video as "a beautiful and expensive dreamlike look into the luxury of being Plastique; beautiful men dance at her command while she whips her silky locks back and forth, her body covered in a jeweled garment". In 2021, Plastique Tiara and Drag Race contestant Kim Chi collaborated on a cosmetics collection.

Plastique Tiara joined TikTok in 2019, and as of August 2025 is the most-followed Drag Race alum on the app with 11.8 million followers, as well as on Instagram, with 4.5 million followers.

On April 23, 2024, Plastique was announced as one of the eight contestants competing on the ninth season of RuPaul's Drag Race All Stars.

Plastique Tiara has been featured on the cover of L’Officiel Vietnam.

Đức is based in Los Angeles, previously Dallas until 2019. They are queer.