Styazhkina, or Stjazkhkina, is a Cyrillic surname. Notable people so named include:

Anna Styazhkina (born 1997), Russian chess player Viacheslav Styazhkina, her father, also a chess player, covered at Anna Styazhkina Olga Stjazhkina (born 1970), Russian chess player Tetyana Styazhkina (born 1977), Ukrainian cyclist