A user selection assistance apparatus includes: a registration unit that registers information of a plurality of users, which includes biometric features of the respective users, in advance and creates a list; a biometric detection unit that newly detects a current biometric feature of one user; a determination unit that compares the biometric feature that is detected to the biometric features that are registered, and determines a degree of similarity therebetween; a user choosing unit that chooses, from the list, one or more registered users having a biometric feature the degree of similarity of which satisfies a predetermined reference and creates a chosen user list; a display unit that displays the chosen user list; an input unit that receives selection of a specific registered user from the chosen user list; and an execution processing unit that executes predetermined processing when the input unit receives the selection of the specific registered user.