A botanical garden or botanic garden is a garden with a documented collection of living plants for the purpose of scientific research, conservation, display, and education. It is their mandate as a botanical garden that plants are labelled with their botanical names. It may contain specialist plant collections such as cacti and other succulent plants, herb gardens, plants from particular parts of the world, and so on; there may be glasshouses or shadehouses, again with special collections such as tropical plants, alpine plants, or other exotic plants that don't grow natively within that region.

वानस्पतिक उद्यान एक प्राकार का उद्यान होता है जहाँ केवल फूल-पौधे इत्यादी उगाए जाते हैं। इन स्थानों में आगंतुक और पर्यटक स्थानीय अथवा वैश्विक वनस्पति को देख सकते हैं। भारत का सबसे प्रसिद्ध वानस्पतिक उद्यान आचार्य जगदिश चंद्र बसु भारतीय वानस्पतिक उद्यान है।