Artificial metalloenzymes have received increasing attention over the last decade as a possible solution to unaddressed challenges in synthetic organic chemistry. Whereas traditional transition‐metal catalysts typically only take advantage of the first coordination sphere to control reactivity and selectivity, artificial metalloenzymes can modulate both the first and second coordination spheres. This difference can manifest itself in reactivity profiles that can be truly unique to artificial metalloenzymes. This Review summarizes attempts to modulate the second coordination sphere of artificial metalloenzymes by using genetic modifications of the protein sequence. In doing so, successful attempts and creative solutions to address the challenges encountered are highlighted. The second row also matters: In contrast to traditional transition‐metal catalysts, artificial metalloenzymes can modulate both the first and second coordination spheres, and thus result in novel reactivities. This Review discusses attempts to modulate the second coordination sphere of artificial metalloenzymes through genetic modifications of the protein sequence.