The Borromean link constitutes an intriguing type of entanglement and knot in both discrete coordination architectures (Borromeate or Borromeand) and infinite coordination assemblies (Borromean networks), and is characteristic of nontrivial three-ring links which are inseparable as a whole while cleavage of any ring makes the whole fall apart. This highlight paper covers recent advances in the assembly of coordination supramolecular structures showing Borromean-linking topological character.