'''Politik''' ({{Jawi|ڤوليتيك|link=no}}) atau '''siasah''' ({{Jawi|سياسة|link=no}}) adalah proses dan cara membuat keputusan untuk sesuatu kumpulan. Walaupun ia biasanya digunakan bagi merujuk kepada [[kerajaan]], tingkah laku politik juga boleh didapati di [[korporat]], akademik, [[agama]], dan [[institusi]] lain. [[Sains politik]] merupakan kajian mengenai tingkah-laku politik dan memeriksa kedapatan dan penggunaan [[kuasa]], contohnya keupayaan untuk memaksa kehendak seseorang kepada yang lain.
Pembuatan kuasa ini dikenakan dalam segenap lapisan masyarakat dari sekecil [[puak]] dan [[suku]] sampailah setinggi [[negara]] dan [[politik antarabangsa|pertubuhan antarabangsa]]; pelaksanaan ini didatangkan dalam pelbagai cara termasuk menggalakkan perbincangan pandangan dan [[rundingan]] sesama anggota serta menulis [[undang-undang]] dan melaksanakannya (termasuk [[peperangan|berperang]] menentang pihak musuh dalam tahap paling ekstrem).<ref name="Hammarlund1985">{{cite book |last1=Hammarlund |first1=Bo |url=https://books.google.com/books?id=BnRlAAAAIAAJ |title=Politik utan partier: studier i Sveriges politiska liv 1726–1727 |publisher=Almqvist & Wiksell International |year=1985 |isbn=978-91-22-00780-7 |access-date=25 Februari 2018 |archive-url=https://web.archive.org/web/20190703043410/https://books.google.com/books?id=BnRlAAAAIAAJ |archive-date=3 Julai 2019 |url-status=live|page=8}}</ref><ref name="Brady2017">{{cite book |last1=Brady |first1=Linda P. |url=https://books.google.com/books?id=iNA3DwAAQBAJ&pg=PT47 |title=The Politics of Negotiation: America's Dealings with Allies, Adversaries, and Friends |publisher=[[University of North Carolina Press]] |year=2017 |isbn=978-1-4696-3960-4 |page=47 |access-date=25 February 2018 |archive-url=https://web.archive.org/web/20190702141049/https://books.google.com/books?id=iNA3DwAAQBAJ&pg=PT47 |archive-date=2 Julai 2019 |url-status=live|page=47}}.</ref><ref name="HawkesworthKogan2013">{{cite book |author1=Hawkesworth |first1=Mary |url=https://books.google.com/books?id=vXgKAgAAQBAJ&pg=PA299 |title=Encyclopedia of Government and Politics: 2-volume Set |last2=Kogan |first2=Maurice |date=2013 |publisher=Routledge |isbn=978-1-136-91332-7 |location=London |access-date=25 Februari 2018 |archive-url=https://web.archive.org/web/20190702181253/https://books.google.com/books?id=vXgKAgAAQBAJ&pg=PA299 |archive-date=2 Julai 2019 |url-status=live|page=299}}.</ref><ref name="Taylor2012">{{cite book |last1=Taylor |first1=Steven L. |url=https://books.google.com/books?id=CV281jLqLPgC&pg=PT130 |title=30-Second Politics: The 50 most thought-provoking ideas in politics, each explained in half a minute |publisher=Icon Books Limited |year=2012 |isbn=978-1-84831-427-6 |page=130 |access-date=25 February 2018 |archive-url=https://web.archive.org/web/20190706214027/https://books.google.com/books?id=CV281jLqLPgC&pg=PT130 |archive-date=6 Julai 2019 |url-status=live|page=130}}</ref><ref>{{cite book |last1=Blanton |first1=Shannon L. |url=https://books.google.com/books?id=_iVTCwAAQBAJ&pg=PA199 |title=World Politics: Trend and Transformation, 2016–2017 |last2=Kegley |first2=Charles W. |publisher=Cengage Learning |year=2016 |isbn=978-1-305-50487-5 |access-date=26 February 2018 |archive-url=https://web.archive.org/web/20190702151756/https://books.google.com/books?id=_iVTCwAAQBAJ&pg=PA199 |archive-date=2 July 2019 |url-status=live|page=199}}</ref>
