里切尔卡（意大利语：ricercar，意大利语发音：[rit͡ʃɛrkar]，原意为寻求、探索），又称为寻求曲、无插入赋格，是16至17世纪的一种复调器乐曲。意大利作曲家安德烈·加布里埃利、吉罗拉马·弗雷斯科巴尔迪等人所作的里切尔卡风格类似于幻想曲与随想曲。后来出现的主题模仿的里切尔卡，以一个短小的主题为基础，先由一个声部奏出主题，之后通过其他声部的模仿使得主题得以连绵不断的发展。这种形式后来发展成为了赋格。巴赫《音乐的奉献》中便有一首三声部里切尔卡与一首六声部里切尔卡。

A ricercar (Italian pronunciation: [ritʃɛr'kare], also spelled ricercare, recercar, recercare) is a type of late Renaissance and mostly early Baroque instrumental composition. The term means to search out, and many ricercars serve a preludial function to "search out" the key or mode of a following piece. A ricercar may explore the permutations of a given motif, and in that regard may follow the piece used as illustration. For example, "Ricercar sopra Benedictus" might develop motifs from a motet titled "Benedictus". The term is also used to designate an etude or study that explores a technical device in playing an instrument, or singing.