The name Lee has its designated name day celebration in the United States on March 22nd.
Lee is a historically enduring name in the USA, rising to prominence during the mid-20th century as a popular given name derived from an older surname. Its Old English origin ties it to natural settings, specifically meaning "clearing" or "meadow." The name projects a mood that is concise, traditional, and strong, offering a sense of reliable simplicity. Functionally, Lee is highly recognized as a versatile unisex name, though statistics show a slightly higher use for males in Western countries. This monosyllabic form ensures it maintains a classic and straightforward appeal across generations.
| Country | Day | Month | Names |
 USA | 1 | January | Arleen, Arlen, Arlene, Arlette, Pablo, Paul, Saul |
 Finland | 5 | January | Lea, Leea |
| USA | 28 | January | Carlotta, Charleen, Charlene, Charlotta, Charlotte, Charmaine, Manfred |
 Estonia | 2 | February | Säde, Leegi |
| USA | 23 | February | Boswell, Gloria, Gloriana, Glory, Reilley, Riley, Rylan, Rylee, Ryleigh, Ryley, Rylie |
| USA | 16 | March | Bailee, Bailey, Baylee, Bayley, Melisa, Melissa, Melita, Melyta, Millicent, Millie, Missy |
| USA | 22 | April | Caia, Caissa, Kai, Kaila, Kailey, Kaleigh, Kaley, Kay, Kayla, Kaylee, Kayleigh, Kayley, Kaylie, Kaylin, Kaylyn, Leonidas, Makayla, Mckayla |
| USA | 23 | April | Brayan, Breana, Breanna, Breanne, Brian, Briana, Brianna, Brianne, Brielle, Brien, Briona, Bryan, Bryana, Bryanna, Bryant, Brynn, Bryon, Shirlee, Shirleen, Shirley |
| Estonia | 11 | May | Liivar, Liivo, Leevo |
| USA | 14 | May | Asher, Ashlee, Ashleigh, Ashley, Ashlie, Ashlyn, Ashlynn, Ashton, Berk, Berkeley, Bourke, Burgess, Burke |
| USA | 22 | May | Jolee, Joleen, Jolene, Jolie, Marshall |
| USA | 25 | May | Madalyn, Madeleine, Madeline, Madelyn, Madilyn, Marlee, Marleen, Marlena, Marlene, Marley |
| USA | 1 | June | Brigham, June, Junella, Marilee, Marilou, Marilu, Marilyn, Marylynn |
| USA | 28 | June | Dara, Darla, Darleen, Darlene, Darrell, Darren, Darrin, Darryl, Daryl, Jarell, Jerrell |
| Estonia | 22 | July | Magdaleena, Magda, Made, Madli, Malle, Mall, Leen, Leena, Leeni |
| Finland | 22 | July | Leena, Leeni, Lenita, Matleena |
| Estonia | 18 | August | Heleene, Helene, Helena, Elina, Ilona, Helen, Hell, Hella, Helle, Hellen, Helli |
| Finland | 18 | August | Leevi |
| USA | 18 | August | Aileen, Eileen, Elaina, Elaine, Eleanor, Elena, Eliana, Ella, Elle, Ellen, Ellie, Helen, Helena, Iliana, Lena, Leonora, Nell, Nellie, Nelly |
| USA | 20 | September | Eustace, Eustacia, Hailee, Hailey, Haleigh, Haley, Halie, Halle, Hallie, Haylee, Hayley |
| Estonia | 2 | October | Leelo, Leela, Leeli |
| Estonia | 23 | October | Liivia, Liivi, Liivika, Leevi |
| USA | 4 | November | Amory, Cara, Carl, Carla, Carley, Carlo, Carlos, Carly, Carol, Carolina, Caroline, Carolyn, Carrie, Carroll, Charles, Charlie, Chaz, Chuck, Emery, Karl, Karla, Karlee, Karli, Karly |
| USA | 12 | November | Colan, Colin, Colleen, Collin, Cullan, Cullen, Culver, Kiley, Kyla, Kyle, Kylee, Kyleigh, Kyler, Kylier |
| Estonia | 23 | November | Kleement, Leemet, Leemo |
| USA | 25 | November | Caitlin, Caitlyn, Carina, Caryn, Catherine, Cathleen, Cathy, Kaitlin, Kaitlynn, Kara, Karen, Kari, Karina, Kate, Katelyn, Katelynn, Katharine, Katherine, Kathleen, Kathryn, Kathy, Katie, Katrina, Treena, Trina, Trinity |
| USA | 10 | December | Emely, Emilee, Emilia, Emilie, Emily, Eula, Eulalia, Ula |