分子生物学实验室（LMB）是一个设于英国剑桥的研究机构，参与了20世纪50年代到60年代发生的分子生物学革命，从那时起，它仍然是一个重要的医学研究实验室，但具有了更广泛的关注。于原址附近修建的新研究大楼于2013年5月投入使用。分子生物学实验室由英国政府医学研究委员会于1947年设立。迄今已产生了不少诺贝尔奖获得者，如詹姆斯·沃森、弗朗西斯·克里克、弗雷德里克·桑格、悉尼·布伦纳等。

The Medical Research Council (MRC) Laboratory of Molecular Biology (LMB) is a research institute in Cambridge, England, involved in the revolution in molecular biology which occurred in the 1950–60s, since then it remains a major medical research laboratory with a much broader focus. A new £212m replacement building constructed close by to the original site on the Cambridge Biomedical Campus was opened in May 2013. The road outside the new building is named Francis Crick Avenue after the 1962 joint Nobel Prize winner, who co-discovered the helical structure of DNA in 1953.