| STANDARD | ABBREVIATION or PET name or LATIN NAME |
|---|
| Abigail | Abby |
| Abraham | Abrahame, Ab, Abr, Abe, Abby |
| Agnes | Agnus, Aggie, Assie |
| Allowshis | Allow, Aloyisius, Aloysius, |
| Albert | Bert, Albie, Bertie, Albertus, Alberti |
| Alexander | Ales, Alexr, Alec, Alex |
| Alice | Alicia, Alica, Ally |
| Anne | Ann, Anna, Ana, Nancy, Nance, Nanno, Nano, Nannie, Nan, Hannah, Hanna, Hana, Hanah, Hanorah |
| Anastatia | Anastasia, Anty, Ant, Statia, Stais, Anstice, Stasia, Ansty, Stacey |
| Andrew | Andy, Drew, Andreas |
| Anthony | Tony, Antony, Anton, Antonius, Antonious, Anto |
| Archibald | Archy |
| Arthur | Art, Arty |
| Augustus/Augustine | Gus, Gussy, Augustinius |
| Bartholomew | Bart, Bartly, Bat, Barth, Batty, Bartle |
| Bernard | Bern, Berny, Barnaby, Bernardus, Bernardi, Bernardo, Berd, Bernd, |
| Brendan | Bren, Benny, Brendanus |
| Brian | Bryan, Briannus, Bryannus |
| Bridget | Brigid , Brigit, Biddy, Bridie, Brgd, Brigt, Bgt, Breege, Brigette, Bridgie, Brid, Brigidus, Bee. |
| | (Bridget & Delia are interchangeable) |
| Benjamin | Benji, Ben, Benny, Benjie, Benjy |
| Charles | Charlie, Chas, Charley, Les, Carolus, Carlos, Carlo |
| Christopher | Chris, Christy, Christopherus, Christopheri, Christophero |
| Clement | Clem, Clemt, Clementine |
| Cornelius | Con, Conns, Corns, Conny, Cornl, Cornls, Corny, Connie |
| Catherine | Cath, Cathe, Cathy, Catharine, Cathie, Katherine, Kathe, Kath, Kathy, Kate, Katie, Katey, Kay, Kitty, Katherina, Katharina, Catherina, Catharina |
| Conor | Connor, Con |
| Ciaran | Kieran, Kieranus, Kyran, Kyrannus |
| Charlotte | Carlotta, Lottie |
| Caroline | Carolina |
| Christine | Christina, Christiana |
| Daniel | Dan, Danl, Danny, Dónal, Danielus, Danielis, Danieli |
| Darby | Jeremiah |
| Darius | Darry, Darray |
| David | Davy, Dave, Davidus |
| Deborah | Deb, Debbie, Debs, Debby, Debra |
| Diana | Di, Dina |
| Dennis | Denis, Den, Denny, Dns, Din, Dinny, Donnacha, Dionisius, Dionisii, Dyonisius, Dyonisii |
| Dominic | Dom, Dommy, Dominik, Dominicus, Dominici |
| Dorothy | Dot, Dor, Doris, Dotty, Dora, Dorah, Dorcus, Darky |
| Edward | Edw, Ned, Neddy, Ed, Eddy, Edwardus, Eduardus, Edwardi, Edwardo, Eddie, |
| Edmund | Edmd, Edmond, Edmundus, Edmundi, Edmundo, |
| Evelyn | Eveleen, Evelin, |
| Elizabeth | Eliza, Elisabeth, Beth, Betty, Bes, Bess, Bessie, Betsy, Liz, Lizzie, Lizzy, Liza, Eliz, Lizabeth, Lisa, Elizabetha |
| Esther | Ester, Essy, Etty, Easter, Hester, Hesther, Hetty |
| Eugene | Gene, Hugh, Hugo, Hugonis, Hugoni, Eugenius, Eugeni, Owen, Eoghan |
| Ellen | Eleonor, Eleanor, Eleanora, Elenor, Eileen, Nell, Nelly, Nellie, Helen, Helena, Hellena, Eleonora, Elenora |
| Finola | Fin, Nuala, Finny |
| Fergus | Fergie |
| Florence | Flo, Flor, Florry, Florrie |
| Frances(female) | Fran, Franny, Francie, Fanny, Francesca |
| Francis (Male) | Frank, Frankie, Francy, Franciscus |
| Frederick | Fred, Freddie, Fredk, Fredericus, Frederico |
| Garret | Gar, Gary, Ger, Gerry, Gerald, Geraldus |
| Gemima/Gemina | Mina, Minah, Minnie, Jemima |
| Geoffrey | Geoff, Jeffrey, Jeff |
| George | Geo, Georgie, Georgii, Georgius, Georgio |
| Gerald | Ger, Gerry, Geraldus |
| Gillian | Gill, Jill, Gillon. |
| Henry | Har, Harry, Henricus, Henrici, Henrico |
| Honora | Honor, Honoria, Onny, Honorah, Hanara, Hanorah, Nora, Norah, Norrie, Norry, Nonie, Hon |
| Hugh | Hugh, Hugo, Hugonis, Hugoni, Eugenius, Eugeni, Gene, Owen, Eoghan |
| Ignatius | Iggie, Ignatii |
| James | Jim, Jimmy, Jas, Séamus, Séamy, Jamie, Jimser, Jacobus, Jacobi, Jacobo |
| Jeremiah | Jer, Jerry, Jeremy, Jerome, Darby, Derby, Darbius |
| | (Jeremiah & Darby are interchangeable) |
| John | Jno, Jn, Johnny, Jack, Shane, Sean, Joannis, Johannes, Johanni, Joannes, Johnie., |
| Judith | Jude, Judy, Julie, Julia, Julianna, Gudith |
| Johanna | Joh, Johannah, Jane, Joanna |
| | (Judith & Johanna are interchangeable) |
| Joseph | Joe, Josph, Jos, Joey, Josephus, Josephi, Josepho |
| Kevin | Kev, Kevinus, Coemgen, Coemgenius |
| Letitia | Letty, Leticia |
| Laurence/Lawrence | Lar, Larry, Laur, Lawr, Laurentius, Laurenti |
| Lancelot | Lant, Lot, Lotty |
| Louise | Lou, Lulu, Louisa |
| Loughlin | Loughy, Locky |
| Mary | Maria, Mai, May, Marie, Maire, Maureen |
| Malachy | Mal, Malik, Malic, Malick, Malachi |
| Mark | Mk, Marc, Marcus, Marco |
| Margaret | Mgt, Mag, Maggie, Margt, Mags, Meg, Peg, Peggy, Marguerita, Margarita, Madge. |
| Matthew | Mathew, Mat, Math, Matw, Matt, Matty, Mattius, Mattheus, Matheus, Mattw. |
| Michael | Mich, Mick, Micl, Ml, Mikey, Mike, Michl, Michael, Michaelis, Michaeli |
| Mortimer | Mort, Morty, Mortimerus |
| Maurice | Morris, Maurice, Mauritio, Mauritius |
| Martin | Murt, Murty, Martinus, Martini, Martino, Mt. |
| Miles | Myles, Milo, Mylo, Miley, Myley, Militio, Mylitio, Militius, Mylitius, Milesio, Mylesio, Milesius, Mylesius |
| Nathaniel | Nat, Natl, Nath, Natalie, Nathan |
| Norman | Norm |
| Nicholas | Nick, Nicky, Nichs, Nicholi, Nicholaus |
| Oliver | Ollie, Olly, Oliverus, Oliverio |
| Owen | Ownie, Eoghan, Hugh, Hugo, Hugonis, Hugoni, Eugenius, Eugeni, Gene |
| Patrick | Pat, Patt, Paddy, Patk, Padraig, Packie, Pakie, Pauraic, Paudie, Patricius, Patrici, Patricio, Patritius, Patriti, Patritio |
| Peter | Pete, Peadar, Petrus, Petro, Petri |
| Pierce | Pierry, Pearcy, Peary |
| Paul | Paulus |
| Phyllis | Phillis, Phyl |
| Philip | Phil, Philippus, Phillippi |
| Philomena | Phil, Philly, Mena |
| Penelope | Penny, Pen |
| Raphael | Raphel, Ralph, Raph |
| Rebecca | Becky, Beccie, Beck |
| Richard | Dick, Richd, Rick, Ricky, Ricardus, Ricardo, Ricardi, Richardo, Richardi, Richardus |
| Roderick | Rody, Rod, Roger, Rodger, Rodericus, Roderico |
| Robert | Bob, Bobby, Rob, Robby, Robt, Robertus, Roberti, Roberto |
| Rose | Rosa, Rosea, Rosey, Rosanna, Roseanna, Rosannah, Roseannah |
| Samuel | Sam, Saml, Sammy, Samuelis, Samuelus, Samueli |
| Sarah | Sally, Sal, Sally-Ann, Serah, Sara, Sera, Seragh |
| Scholastica | - Female |
| Scholasicus | - Male |
| Sylvester | Sylvie, Vesty, Sylvestus, Sylvesti |
| Sophia | Sophy, Sophie |
| Susan | Sue, Susy, Susie, Suzie, Susanna, Suzanne |
| Stephen | Steven, Steve, Stephanus, Stephano, Stephani |
| Terence | Terry, Ter, Terrins, Terrens, Terentius, Terenti, Terentio, Terencius, Terenci, Terencio |
| Thomas | Tom, Tommy, Thos, Thomas, Thoma, Thomae |
| Tobias | Toby |
| Thaddeus | Thady, Theady, Timothy, Tim, Timmy, Timothius, Timotheus, Timothi, Timothio |
| Theresa | Teresa, Tess, Tessy, Tessie, Therese, Terese |
| Timothy | Tim, Timmy, Timothius, Timotheus, Timothi, Timothio, Thaddeus, Thady, Theady |
| Vincent | Vince, Vincie, Vincy, Vincentius, Vincenti, Vincento |
| Walter | Waltar, Wally, Walt, Watt, Walterus, Walteri, Waltero, Gualterus, Gualtero, Gualteri |
| William | Bill, Wm, Billy, Will, Wilm, Willie, Liam, Gulielmo, Gulielmus, Gulielmi |
| Winifred | Wenefred, Winfrd, Win, Winny, Winnie, Winfd, Úna, Winifreda, Winefreda |
| Zachary | Zachary, Zach, Zacharia, Zachariah, Zacharius |
