Five lanthanide coordination polymers (Ln‐CPs) based on pyridine‐dicarboxylate and lanthanide metal ions were synthesized and characterized, namely [Sm(pydc)(Hpydc)(H2O)5]·4H2O (1) (H2pydc = 2, 5‐pyridine‐dicarboxylic acid), [Ho(pydc)(Hpydc)(H2O)3]n·4nH2O (2), [Ce(pydc)(bdc)(H2O)]n (3) (H2bdc = 1, 4‐benzenedicarboxylic acid), [Nd2(dipic)3(H2O)3]n (4), and [Pr2Ag2(dipic)4(H2O)5]n·5nH2O (5) (H2dipic = 3, 5‐pyridine‐dicarboxylic acid). Complexes 1 and 2 display mononuclear structure and 1D zigzag chains, respectively. In complex 3, the CeIII ions are connected through pydc2– and bdc2– ligands to generate an intricate 3D architecture. Complex 4 is constructed through dinuclear {Nd2} SBUs and oxygen bridging from carboxyl groups of dipic2– to generate a 3D framework. In 5, PrIII ions and AgI ions are assembled into a 2D heterometallic layer, in which the rare Ag···Ag weak interactions are observed. Furthermore, the solid state luminescent properties of 1–4 were measured and discussed.