Matches against other London sides, such as Chelsea and Tottenham are also derbies and violence has occurred between fans although the rivalry is not as intense as that between West Ham and Millwall.
Pertandingan melawan tim London lainnya, seperti Chelsea dan Tottenham juga dianggapderby dan kekerasan telah terjadi antara penggemar, meskipun persaingan tidak intens seperti antara West Ham dan Millwall.