欧洲柏大戟（Euphorbia cyparissias）是大戟属的植物，生长于欧洲及于1860年代引入到北美洲作为观赏植物。

欧洲柏大戟生长在沙丘、岸边及草原。于北美洲，它们被种植在路边干旱及多石的土壤、草地及草坪中。它们较为喜欢开放的地区生长，而非森林或田地。

Euphorbia cyparissias, the cypress spurge, is a species of plant in the genus Euphorbia. It is native to Europe and was introduced to North America in the 1860s as an ornamental plant.

Natural habitat types include dunes, pannes, coastal headlands and grasslands. In North America it is commonly found in the dry, gravelly soil of roadsides, pastures, and meadows. Cypress spurge thrives in open, disturbed areas.