Addison, Ainsley, Alex, Alexis, Angel, Ashley, Aubrey, Avery, Bailey, Beverly, Blair, Cameron, Cassidy, Chance, Chase, Cherokee, Courtney, Dakota, Dale, Darby, Darcy, Devin (Devon), Elliot, Emerson (Emmerson), Evelyn, Fran, Gale, Hadley, Harlow, Harper, Hayden, Hilary, Hollis, Hunter, Iman, Jamie, Jayden (Jaden, Jaiden), Jocelyn, Jordan, Joyce, Kelly, Kelsey, Kendall, Kennedy, Lee (Leigh), Leslie (Lesley), Lindsay (Lindsey), Logan, London, Lynn, Mackenzie, Madison, Meredith, Morgan, Murphy, Noor, Parker, Paris, Peyton (Payton), Phoenix, Quinn, Reilly (Riley), Robin, Ryan, Sage, Shannon, Sharon, Shirley, Sheridan, Shiloh, Sidney, Sky, Skyler (Skylar), Teagan (Taegan), Terry, Taylor, Tracy (Tracey), Vivian, and Whitney.
Unisex nicknames from longer names:
Alex - Alexander, Alexandra, Alexis, Alexandria
Andi, Andie, Andy - Andrea, Andre, Andrew
Ash - Asher, Ashley, Ashlyn, Ashton
Berni, Bernie, Berny - Berenice, Bernard, Bernadette
Berti, Bertie, Berty - Albert, Alberta, Alberto, Robert, Roberta, Roberto
Bobbi, Bobbie, Bobby - Robert, Roberta, Roberto
Cass - Casper, Cassandra, Cassian, Cassidy
Cassi, Cassie, Cassy - Casper, Cassandra, Cassian, Cassidy
Charli, Charlie, Charly - Charlene, Charles, Charlotte
Chris - Christian, Christine, Christina, Christoph, Christopher
Christi, Christie, Christy - Christine, Christina, Christopher
Danni, Dannie, Danny - Daniel, Danielle
Ed, Eddi, Eddie, Eddy - Edith, Edmund, Edward, Edwin, Edwina
Fran - Frances, Francis, Francesca, Francesco, Francine
Franki, Frankie, Franky - Frances, Francis, Francesca, Francesco, Francine, Frank, Franklin
Franni, Frannie, Franny - Frances, Francis, Francesca, Francesco, Francine
Freddi, Freddie, Freddy - Fred, Frederick, Frederica
Gabbi, Gabbie, Gabby - Gabriel, Gabriella, Gabrielle
Georgie - George, Georgeanna, Georgette, Georgia, Georgina
Izzi, Izzie, Izzy - Isaac, Isabel, Isabella, Isabelle, Isidore, Isolde, Elizabeth
Jacki, Jackie, Jacky - Jack, Jackson, Jacqueline, John
Jay - Jacob, James, Jamie, Jane, Jayden
Jess - Jesse, Jessica
Jerri, Jerrie, Jerry - Gerald, Geraldine, Gerard, Jeremiah, Jeremy, Jerome
Joey - Joanna, Joanne, Joseph, Josephine
Joss - Jocelyn, Joseph, Josiah
Kel - Kelly, Kelsey
Liv - Olive, Oliver, Olivia
Lou - Lewis, Louis, Louise, Lucas
Louie - Louis, Louise
Maddi, Maddie, Maddy - Madeline, Madison
Mandi, Mandie, Mandy - Amanda, Amandus, Mandel
Manni, Mannie, Manny - Emanuel, Emmanuel, Emmanuelle, Manfred
Matti, Mattie, Matty - Mathilda, Matilda, Matthew
Max - Maximilian, Maximus, Maxine, Maxwell
Mel - Melanie, Melinda, Melissa, Melody, Melvin, Melina
Micki, Mickie, Mickey, Micky- Michael, Michaela, Michelle, Mikayla
Nat - Nathanael, Natalia, Nathalie, Natasha, Nathan, Nathaniel, Natalie
Nicola, Nicki, Nickie, Nicky - Nicholas, Nicole, Nicolette
Olli, Ollie, Olly - Olive, Oliver, Olivia
Pat - Patricia, Patrick
Patti, Pattie, Patty - Patricia, Patrick
Robbi, Robbie, Robby - Robert, Roberta, Roberto, Robin
Ronni, Ronnie, Ronny - Ronald, Veronica
Sacha, Sascha, Sasha - Alexander, Alexandra
Sal - Sally, Salvador
Sam - Samson, Samuel, Samantha
Sammi, Sammie, Sammy - Samson, Samuel, Samantha
Sandi, Sandie, Sandy - Alexander, Alexandra
Shelli, Shellie, Shelly - Michelle, Sheldon, Shelton
Stevie - Stephanie, Stephen, Steven
Terri, Terrie, Terry - Terence, Teresa, Theresa
Theo - Theobald, Theodora, Theodore, Theodoros
Toni, Tonie, Tony - Anthony, Antonia, Antonio
Val - Valentina, Valentine, Valentino, Valerie
Vic -Vicky, Victor, Victoria
Viv - Vivian, Viviana, Vivien, Vivienne