Hasan Doğan Piker (/ˈpaɪkər/ PY-kər; Turkish: [haˈsan doˈan piˈcæɾ];[2] born July 25, 1991), also known as HasanAbi, is a Turkish-American online streamer, YouTuber, influencer, and left-wing political commentator.

[6] His father, Mehmet Behçet Piker, is a political scientist and economist who served on the Board of Directors (and as Vice President) of Sabancı Holding, and who is a founding member of the Future Party in Turkey.

[15][5] During his senior year of college in 2013, Piker interned for The Young Turks (TYT), a progressive news show and network co-founded by his uncle, Cenk Uygur.

[5][14] In 2016, Piker created and hosted The Breakdown, a TYT Network video series which aired on Facebook and presented left-leaning political analyses targeted, at the time, at millennial supporters of presidential candidate Bernie Sanders.

[4] Piker has said he shifted his attention from Facebook to Twitch in order to reach a younger audience and because of what he felt was a preponderance of right-wing commentators on YouTube and a lack of leftist representation among streamers.

[28][29] During a Twitch stream on August 20, 2019, Piker criticized U.S. Representative Dan Crenshaw, a SEAL Team 3 veteran who served in Afghanistan, for his support of American military interventionism overseas.

"[30][31][32] In the same stream, Piker criticized American foreign policy and made controversial comments relating to the September 11, 2001, attacks, including "America deserved 9/11.

In response, Piker described his comments as satirical and cited American foreign policy as promoting conditions to make an event like 9/11 possible, but acknowledged that he should have used "more precise" language.

[20][34] The stream aired the following day, featuring both Ocasio-Cortez and U.S. Representative Ilhan Omar playing the game with Piker and other popular Twitch streamers, reaching a total concurrent viewership of almost 700,000.

"[49][50] An August 2023 paper in New Media & Society criticized Twitch for punishing Piker while epithets aimed minority groups were prevalent on the platform.

[52][53] In January 2024, Piker interviewed a Yemeni self-proclaimed "pirate" who had filmed himself on board the Galaxy Leader, a Bahamas-flagged ship that has been held captive by Houthi militants since November 2023.

[55] During the Russian invasion of Ukraine, Piker, in partnership with CARE, raised over $200,000 for Ukrainian relief funds while playing Elden Ring, with an average of over 70,000 people watching his coverage of the conflict.

[56][57][58] In the aftermath of the February 6, 2023, Turkey–Syria earthquake, Piker organized a fundraiser that was also contributed to and promoted by other streamers and content creators including Jacksepticeye, Valkyrae, Ludwig Ahgren and IShowSpeed.

[64][66] On November 8, 2021, Piker released a line of union-made merchandise called Ideologie and donated a portion of the proceedings to strike funds in which he raised over $180,000.

[75] Piker has cited his upbringing in Turkey under the Premiership of Recep Tayyip Erdoğan as an influence on both his left-wing views and willingness to speak out about them.

In particular, journalists have noted his ability to "combine information and entertainment,"[14][79] and to approach left-wing political coverage in a way that is relatable and accessible to Twitch viewers, who may feel out of touch with cable news.

[82] In April 2024, the same journal noted that Piker is familiar with journalistic mechanics such as sourcing, framing, and objectivity, but rejects these as methods used for "manufacturing consent for elites".