Geronsi wa Milano (alifariki Milano, Italia Kaskazini, 465) alikuwa askofu wa mji huo kuanzia mwaka 462. Aliendeleza juhudi za mtangulizi wake, Eusebi wa Milano, kwa kujenga upya Milano baada ya maangamizi yaliyofanywa na Wahunni wa Attila na kusaidia walioathirika na hali hiyo. Tangu kale anaheshimiwa na Wakatoliki na Waorthodoksi kama mtakatifu. Sikukuu yake huadhimishwa tarehe 5 Mei. Watakatifu wa Agano la Kale Orodha ya Watakatifu Wakristo Orodha ya Watakatifu wa Afrika Orodha ya Watakatifu Wafransisko Catalogus Archiepiscoporum Mediolanensium Archived 2017-04-10 at the Wayback Machine, Monumenta Germaniae Historica, Scriptores, vol. VIII, Hannover 1848, p. 103. Pius Bonifacius Gams, Series episcoporum Ecclesiae Catholicae, Leipzig 1931, pp. 795. Pietri, Prosopographie de l'Italie chrétienne, I, p. 704. http://www.santiebeati.it/dettaglio/51940 Martyrologium Romanum [1] (Kilatini) Giuseppe Antonio Sassi, Baldassarre Oltrocchi, Archiepiscoporum Mediolanensium series historico-chronologica, vol. I, Milano 1755, pp. 126-128 (Kilatini) De Sancto Gerontio archiepiscopo Mediolanensi, Acta Sanctorum maii, tomo II, Parigi-Roma 1866, p.