The Portuguese inventions are the inventions created by the people born in Portugal (continent or overseas), or whose nationality is Portuguese. These inventions were created mainly during the age of Portuguese discoveries, and during modernity.

Relying on trade secret explains, in part, the difficulty often experienced by researchers^[3] in documenting Portuguese inventions, as many are not described in patent documents, or other technical documents. On the other hand, there are cases, like some types of swords, where the inventions themselves or the underlying documents were lost, having been destroyed, for example, during the French invasions. There are as well documentation and objects of Portuguese origin in private collections or museums outside of Portugal.^[4]

The creation of new inventions in Portugal was at its peak during the Age of Discovery. These inventions consisted mainly in the improvement of devices and techniques of ocean navigation and coastal cartography, such as the mariner's astrolabe and the chart of latitudes. On the field of military applications, the construction of cannons and new types of swords, like the Carracks black sword.

• Carrack (Nau) – the Oceanic Carrack (a new and different model, and largest carrack)
• Galleon – the Oceanic Galleon
• Square-rigged caravel – Round caravel. The most enduring and replicated model of the ships with this name, and predecessor of other ships of the range.
• The nonius
• The mariner's astrolabe
• The Passarola, the first known airship
• The Pyreliophorus
• Tempura
• Marmalade
• The drug Zebinix^[6]
• The Carracks black sword
• Cerebral angiography
• The Via Verde toll collection system
• The All-on-4 dental method
• Prepaid mobile phone
• Multibanco
• Coloradd
• Herrmann wall telephone^[7]