基因间区段（英语：Intergenic region）又称基因间隔区，是指穿插在基因与基因之间的DNA串行，这些串行不生产蛋白质，在人类基因组中占了大多数。

基因间区段的少数串行会影响基因的表现，但大多数串行并没有作用，或是功能未知。

An Intergenic region (IGR) is a stretch of DNA sequences located between genes. Intergenic regions are a subset of Noncoding DNA. Occasionally some intergenic DNA acts to control genes nearby, but most of it has no currently known function. It is one of the DNA sequences sometimes referred to as junk DNA, though it is only one phenomenon labeled such and in scientific studies today, the term is less used. Recently DNA fragments in intergenic regions were known as "dark matter" or "dark matter transcripts".