Fennel is a species of plant, Foeniculum vulgare.

Fennel may also refer to:

Plants Fennel, Foeniculum vulgare, a flowering plant species in the carrot family Giant fennel, Ferula communis, a flowering plant species in the carrot family Crithmum, also known as sea fennel, a genus of flowering plant with the sole species Crithmum maritimum, also known as samphire Nigella sativa, sometimes called "fennel flower", an annual flowering plant in the family Ranunculaceae, native to south and southwest Asia Caraway, also known as "meridian fennel", (Carum carvi), a biennial plant in the family Apiaceae, native to western Asia, Europe, and North Africa Dog fennel, which may refer to a number of species False fennel, which may refer to a number of species Giant Tangier fennel, Ferula tingitana, is a species of the Apiaceae genus Ferula Marsh hog's fennel, Peucedanum palustre ("milk-parsley"), a biennial plant in the family Apiaceae Hog's-fennel, Peucedanum officinale, a herbaceous perennial plant in the family Apiaceae found mainly in Central Europe and Southern Europe Fennel pondweed, Stuckenia pectinata, a cosmopolitan water plant species that grows in fresh and brackish water Giant hog fennel, Peucedanum verticillare, also known as Milk Parsley, a herbaceous plant in the genus Peucedanum of the family Apiaceae

People Esther Fennel, (1981-), a German former racing cyclist Katja Fennel, an oceanographer Wallace Fennel, fictional character from the Veronica Mars TV series

Other Operation Fennel, a contingency organisation for disruption of traffic across the English Channel HMCS Fennel, a Flower-class corvette that served with the Royal Canadian Navy during the Second World War Fennel, a programming language similar to Lisp; see Fennel, a Japanese e-sports clan

See also Fennelly, a family name Fennell, a family name Fenella (disambiguation), a female name