| Cyperus diffusus Vahl, 1805 |
| Cyperus diffusus subsp. tolucensis (Kunth) Borhidi, 1979 |
| Cyperus diffusus var. chorisanthos (C.B. Clarke) Kük., 1936 |
| Cyperus diffusus var. tolucensis (Kunth) Kük., 1936 |
| Cyperus diffusus var. umbrosus (Lindl. & Nees ex Nees) Kük., 1936 |
| Cyperus digitatus Roxb., 1820 |
| Cyperus digitatus subsp. digitatus Roxb., 1820 |
| Cyperus dioicus I.M. Johnst., 1924 |
| Cyperus diphyllus Retz., 1789 |
| Cyperus dipsaceus Liebm., 1850 |
| Cyperus discigerus Liebm., 1850 |
| Cyperus discolor Boeckeler, 1888 |
| Cyperus dissitiflorus Nees ex Torr., 1836 |
| Cyperus distans L. f., 1781 |
| Cyperus divergens Kunth, 1815 |
| Cyperus drummondii Torr. & Hook., 1836 |
| Cyperus durandii Boeckeler, 1895 |
| Cyperus duripes I.M. Johnst., 1931 |
| Cyperus dussii Boeckeler, 1890 |
| Cyperus echinatus (L.) Alph. Wood, 1861 |