Tim Tate (born 1960) is an American artist and the co-founder of the Washington Glass School in the Greater Washington, DC capital area. The school was founded in 2001 and is now the second largest warm glass school in the United States. Tate was diagnosed as HIV positive in 1989 and was told that he had a year left to live. As a result, Tate decided to begin working with glass to leave a legacy behind. Over a decade ago, Tate began incorporating video and embedded electronics into his glass sculptures, thus becoming one of the first artists to migrate and integrate the relatively new form of video art into sculptural works. In 2019 he was selected to represent the United States at the sixth edition of the Glasstress exhibition at the Venice Biennale.

Tate was born and currently lives in Washington, D.C.

In her 2003 review of Tate's first solo gallery exhibition at the Fraser Gallery in Washington, DC, The Washington Times art critic Joanna Shaw-Eagle noted that visitors to the show "may not know exactly what draws them to Mr. Tate's art, but they'll find it mesmerizing. The more they examine it, the more they'll get back." In reviewing that same show, The Washington Post's art critic Michael O'Sullivan observed that Tate's symbolic vocabulary, at least to O'Sullivan, suggested the iconography of martyrdom. In the 2007 Artomatic show, Tate's artwork The Rapture disappeared under dramatic circumstances, and later a ransom demand (for Monopoly money) was sent to The Washington Post. The demands were met and parts of the artwork were returned by the thief, named "The Collector", along with his manifesto about society failing to value its art.

Four years later, the Philadelphia Free Press was one of the first to try to categorize his work as "steampunk", and they also affirmed that Tate was a sculptor, a videographer, and a glass artist. In discussing his ground-breaking incorporation of video to traditional glass art, The Washington City Paper documented in 2008 that Tate hoped that his incorporation of new media, running on computer-processing power, would yield a new approach to glass blowing. Also in 2008 The Philadelphia Inquirer reported that two of Tate's pieces sold for $41,000 at auction.

In 2009, the National Public Radio program All Things Considered put similar observations about his work in the context that the work occupied a "strange place between Old World art and New World technology."

In 2011, together with curator, art critic, and author William Warmus, Tate started a Facebook page devoted to "glass secessionism." "In a controversial move, the secessionists posited that a new generation was moving beyond the technical and aesthetic ideals of the 20th-century postwar studio glass movement." The backlash from the glass establishment was immediate; the new Facebook conversation was called uninformed and even mean-spirited. By 2014 Tate and Warmus had established themselves as the leaders of this new movement in contemporary glass.

By 2013, American University, even while describing his growing artistic presence as "Washington, DC’s best known contemporary glass artist", also noted that the video component of his work was being recognized independently of the glass genre.

In 2018, The Washington Post observed that his work "refers to LGBTQ dignity."