Wojak (from Polish wojak, pronounced [ˈvɔjak], loosely 'soldier' or 'fighter'), also known as Feels Guy, is an Internet meme that is, in its original form, a simple, black-outlined cartoon drawing of a bald man with a wistful expression.

The meme subsequently grew in popularity on 4chan, where the character became associated with phrases such as "I know that feel, bro", "that feel", and "that feel when".

The meme first appeared on the Polish imageboard Vichan with the name ciepłatwarz.jpg (warmface.jpg). The earliest archived appearance was posted on 16 December 2009 on the meme sharing website Sad and Useless. Intelligencer describes Wojak's expression as "pained but dealing with it". A user named "Wojak" shared the image on German imageboard Krautchan in 2010, which started the meme. The image spread to many imageboards, including 4chan, where by 2011, an image of two Wojaks hugging each other under the caption "I know that feel bro" gained popularity.

Wojak was also paired with the template phrase "that feel" or "that feel when", often shortened to "tfw" or ">tfw".

Some variants paired him with the character Pepe the Frog (with catchphrases "feels good man" or "feels bad man"), in what Feldman describes as a "platonic romance within the memescape".

In October 2018, a Wojak with a gray face, pointy nose and blank, emotionless facial expression, dubbed "NPC Wojak", became a popular visual representation for people who cannot think for themselves or make their own decisions, comparing them to non-player characters – computer-automated characters within a video game. NPC Wojak has gained online notoriety. The meme gained media attention, initially in Kotaku and The New York Times, due to its usage in parodying the supposed herd mentality of American liberals. This usage of the meme has been attributed to Donald Trump supporters. About 1,500 Twitter accounts falsely posing as liberal activists with the NPC meme as a profile picture were suspended for spreading misinformation about the 2018 United States elections. On 13 January 2019, a conservative art collective known as "The Faction" hijacked a billboard for Real Time with Bill Maher, replacing Maher's image with that of the NPC Wojak.

In November 2019, the "Coomer" Wojak picked up in popularity with the "No Nut November" trend. The Coomer depicts a Wojak edit with unkempt hair, red rimmed eyes, and an untidy beard, sporting a lascivious grin. This Wojak is sometimes depicted with a skinny frame, and a large, muscular right arm resulting from excessive masturbation. It is generally understood to represent someone with a pornography addiction. Much of this meme's popularity can be attributed to the "Coomer Pledge", a viral internet trend which dared people to abstain from masturbation for all of November, and change their profile picture to an image of the Coomer if they were to fail.

The doomer is an image macro and character archetype that first appeared on 4chan. The image typically depicts Wojak wearing a black watch cap and a black hooded sweatshirt, with dark circles under his eyes, while smoking a cigarette. The archetype often embodies nihilism, clinical depression, hopelessness, and despair, with a belief in the incipient end of the world to causes ranging from climate apocalypse, to peak oil, to alcoholism, to (more locally) opioid addiction. The meme first appeared on 4chan's /r9k/ board in September 2018.