Cypress dream meaning is explained below using 9 different sources. Each interpretation is shown with its source.

Interpretation 1 — Martha Clarke

Although it has a long life, it is the tree of cemeteries. Its image has to do with death, but also with eternity. It symbolizes the passage of time, death, and the beginning of perpetual existence. It represents the transition from the physical life (perishable) to the spiritual life that lasts forever. In the Middle Ages, it was considered a sign of welcome. A pilgrim who felt well taken care of in a monastery would plant a cypress at the entrance, so other pilgrims could tell that in that place they would be welcome. Thus, we can say that its symbolism is very complex. 
Source: The Big Dictionary of Dreams Author: Martha Clarke

Interpretation 2 — Eric Ackroyd

(1) A cypress tree symbolizes death and mourning.

See also Dead / Death.

(2) Being evergreen, however, it also symbolizes immortality; the hope of new life on the other side of death.

See also Dead / Death.

(3) Of course, a cypress may have special significance for you: perhaps, for instance, you associate it with a Mediterranean holiday in which you experienced something meaningful.

Source: A Dictionary of Dream Symbols Author: Eric Ackroyd

Interpretation 3 — Garuda

Symbol: The tree of the righteous, the cypress is a sacred symbol of life, connected to the gods of the underworld.

Vision + Depth Psychology: Seeing a cypress means a sad event or setback at work or at home. Planting a cypress: somebody is going to die.

Source: Dreamers Dictionary Author: Garuda

Interpretation 4 — DreamForth

To dream of a cypress tree represents the notion of death, the underworld, and the unconscious. It may likewise refer to a stage of mourning and misery.
Source: Dream Symbols and Analysis Author: DreamForth

Interpretation 5 — Klaus Vollmar

See Tree. Memories of vacations. Longing for Warmth. Slender and graceful.

Folklore: Troubles.

Source: Little Giant Encyclopedia Author: Klaus Vollmar

Interpretation 6 — Internet Archive - Anonymous

An unfortunate dream, usually a premonition of trouble. Be cautious and it may be avoided.
Source: Mystic Dream Book Author: Internet Archive - Anonymous

Interpretation 7 — Katherine Taylor Craig

A dream of sorrow and mourning (Artemidorus); symbolism agrees with the dream.
Source: The Fabric of Dream Author: Katherine Taylor Craig

Interpretation 8 — Stearn Robinson - Tom Corbett

This tree on its own signifies sad news concerning friends.

See also Trees.

Source: The Complete Guide to Interpreting Your Dreams Author: Stearn Robinson - Tom Corbett

Interpretation 9 — Ibn Seerin

(See Evergreen)
Source: Islamic Dream Interpretation Author: Ibn Seerin