Candidate selection within parties is a key stage in the political process and provides an important frame for the degree of representation of social groups in parliaments. We seek to develop a better understanding of the effect of intersectionality on candidate selection processes. We do so by examining the effect of candidates’ key socio-demographic characteristics, like their gender and ethnic background, on their chances of getting nominated by their party. We argue that features of the ideological background of the respective nominating party matter for the chances that women and aspirants with an ethnic background win the nomination as their party’s district candidate. We make use of novel data from the 2021 German federal election that provides detailed information on the candidate selection processes of all major parties in the 299 election districts. By doing so, we apply existing theoretical expectations to an untested case and find that female competitors and aspirants with an ethnic background face difficulties being nominated, in particular in the case of parties with rather traditionalist societal policy positions. We also find that intersectionality matters: female aspirants of ethnic minorities are even less likely to be nominated by ideologically traditional parties.