Jenn \j(e)-nn\ as a girl's name is a variant of Jennifer (Welsh), and the meaning of Jenn is "fair one".
The baby name Jenn sounds like Jenna, Jenny, Jena, Jenni, Jeni, Jen, Jann and Jean. Other similar baby names are Lena, Ann, Lene, Bena, Benni, Benny, Dene, Deann, Dena, Denni, Denna, Denny, Deni, Deon, Eena, Jennie, Jeena, Gene, Gena, Genny, Genna, Jeri, Jere, Jinny, Jennee, Rene, Rena, Jaena, Jan, Janne, Janna, Jana, Janny, Jennay, Jennae, Jenee, Jenay, Jenai, Jenae, Jane, Joni, Joan, Jinna, Jess, Jenie, Jenda, Jeanne, Jany, Jennet, Jency, Jey, Jeh, Je-, Jeanna, Jeane, Jeana, Jenine, Jenina, Jennah, Jenney, Genni, Jinni, Jennis, Jenene, Jeneen, Jery, Jeth, Jett, Jina, Jone, Joeann, Joann, Jonni, Jonna, June, Juno, Kenna, Keni, Kena, Leann, Lenna, Lynn, Linn, Mena, Nann, Nenna, Nena, Penny, Penna, Pen, Renny, Renne, Rynn, Sena, Sean, Tena, Venna, Vena, Wynn, Xeni, Zena, Xena, Yann, Jona and Zenna.