Linus Gabriel Sebastian (born: August 20, 1986 [age 35]), better known online as Linus Tech Tips (or simply LTT), is a Canadian YouTuber, video presenter, technology demonstrator and advertiser.

Linus is currently the third most-subscribed tech channel on YouTube, the first being Unbox Therapy and the other being Marques Brownlee. Linus also has six more YouTube channels under the names Techquickie, TechLinked, Channel Super Fun, LMG Clips, LinusCatTips, ShortCircuit, and They're Just Movies (formerly known as "Carpool Critics").

Linus Tech is currently learning how to use their 1100MX mill - we can't wait to see what they do.