生物无机化学是研究金属在生物体内角色的学科，生物无机化学研究像金属蛋白及金属酶等天然的生物分子，金属与生物分子的相互作用，如金属离子信道，也研究在医药（金属药物）及毒物学中，金属（特别是非膳食矿物质）对生物的影响。生物无机化学也包括金属蛋白的模型及仿真

生物无机化学是无机化学与生物化学的交叉学科，像电子转移蛋白质、受体的键结及活化，原子和原子团的转移都和生物无机化学有关。许多生物过程（像呼吸作用）也和许多无机化合物有关。

Bioinorganic chemistry is a field that examines the role of metals in biology. Bioinorganic chemistry includes the study of both natural phenomena such as the behavior of metalloproteins as well as artificially introduced metals, including those that are non-essential, in medicine and toxicology. Many biological processes such as respiration depend upon molecules that fall within the realm of inorganic chemistry. The discipline also includes the study of inorganic models or mimics that imitate the behaviour of metalloproteins.