锔（Curium）是一种放射性超铀元素，符号为Cm，原子序为96，属于锕系元素，以研究放射性的科学家玛莉·居礼（Marie Curie）和其丈夫皮埃尔·居礼命名。伯克利加州大学的格伦·西奥多·西博格等人在1944年7月首次专门合成锔元素。发现起初被列为机密，到1945年11月才公布于世。大部分的锔是在核反应炉中通过对铀或钚进行中子撞击产生的。每吨用尽的核燃料中含有大约20克锔。

锔是一种银白色的坚硬高密度金属，熔点和沸点是锕系元素中较高的。锔在标准温度和压力下具顺磁性，并在冷却后变为反铁磁性；许多锔化合物也具有磁性的转变。锔在化合物中的氧化态通常为+3和+4，而在溶液中主要呈+3态。锔很容易被氧化，而形成的氧化物是锔最常见的形态。锔可以和各种有机化合物形成萤光配合物，但不出现在任何细菌或古菌中。当摄入人体之后，锔会累积在骨骼、肺部和肝脏中，并可致癌。

Curium is a transuranic radioactive chemical element with symbol Cm and atomic number 96. This element of the actinide series was named after Marie and Pierre Curie – both were known for their research on radioactivity. Curium was first intentionally produced and identified in July 1944 by the group of Glenn T. Seaborg at the University of California, Berkeley. The discovery was kept secret and only released to the public in November 1945. Most curium is produced by bombarding uranium or plutonium with neutrons in nuclear reactors – one tonne of spent nuclear fuel contains about 20 grams of curium.