The　merger　of　transition-metal　catalysis　and　electrochemistry　has　emerged　as　a　very　versatile　and　robust　synthetic　tool　in　organic　synthesis.　Like　in　their　non-electrochemical　variants,　ligands　also　play　crucial　roles　in　fundamental　reactions　in　transition-metal　catalysis　under　electrochemical　conditions.　Herein,　a　perspective　on　the　roles　of　ligands　in　transition-metal　catalysis　under　electrochemical　conditions　is　provided　with　selected　transformations　enabled　by　such　a　merger　including　C-H　functionalization,　difunctionalization　of　alkenes,　cross-coupling　reactions　and　carboxylation　with　CO2.　This　journal　is　©　the　Partner　Organisations.