Lambert: Name day
Name Day List: Lambert
| Country | Day | Month | Names |
 Poland | 16 | April | Benedykt, Bernadetta, Cecyl, Cecylian, Charyzjusz, Erwin, Erwina, Julia, Ksenia, Lambert, Lamberta, Nikita, Nosisław, Patrycy, Urban |
 France | 17 | September | Hildegarde, Lambert, Renaud |
| Poland | 17 | September | Ariadna, Dezyderiusz, Drogosław, Franciszek, Hildegarda, Justyn, Justyna, Lambert, Lamberta, Narcyz, Teodora |
 USA | 17 | September | Ariadne, Ariana, Arianna, Hildegard, Hildegarde, Lambert, Lambertine |
 Austria | 18 | September | Herlinde, Lambert, Rica |
Name Day List - similar names (Lambert)
Spain 
Denmark