A nucleotide kinase is any kinase taking a nucleotide reactant. It may mean:
Nucleoside-phosphate kinase, EC 2.7.4.4 Nucleoside-diphosphate kinase, EC 2.7.4.6 (deoxy)nucleoside-phosphate kinase, EC 2.7.4.10 Nucleoside-triphosphate—adenylate kinase, EC 2.7.4.13 Cytidylate kinase, EC 2.7.4.14