Tkach is a Slavic surname meaning "weaver". It is a common surname in Ukraine, as well as in Russia, Belarus, Poland, Slovakia, Czech Republic and Serbia. Notable people with the surname include:

Anna Tkach (born 1975), Russian-born Israeli sprinter Elena Tkach (born 1970), Russian sport shooter Joseph W. Tkach (1927–1995), American religious figure Joseph Tkach, Jr. (born 1951), American religious figure, son of Joseph W. Tkach Kristina Tkach (born 1999), Russian pool player Lyubov Tkach (born 1993), Russian athlete Mikhail Tkach (1895–unknown), Ukrainian-born American spy Roman Tkach (born 1962), Ukrainian politician Serhiy Tkach (1952–2018), Russian-born Ukrainian serial killer Svetlana Tkach (born 1969), Moldovan runner Walter R. Tkach (1917–1989), American physician Yaroslav Tkach (born 2001), Ukrainian speed climber Yuliya Tkach (born 1989), Ukrainian Olympic wrestler Yuriy Tkach (born 1983), Ukrainian comedian Zlata Tkach (1928–2006), Moldovan composer

See also