The Swiss Tarot deck is a 78-card deck used for the tarot card games Troccas and Troggu. It is also sometimes called the JJ Tarot due to the replacement of the usual second and fifth trumps with cards depicting Juno and Jupiter, or as 1JJ Tarot in reference to the catalog number of a common release of the deck by A.G. Müller.^{[lower-alpha 1]}

The deck is derived from the Tarot de Besançon, which itself comes from the Tarot of Marseilles.^[1][2] It is an Italian suited pack which substitutes the figures of Juno and Jupiter in place of the Popess and Pope of the Tarot of Marseilles. The first version was produced between 1831 and 1838 in the card factory of Johann Georg Rauch. It was the first tarot pack made by the factory and was unexpectedly successful in the American market. The first version was manufactured, unaltered, by his successor, Johannes Müller in Diessenhofen until 1860.^[3]

In 1965 the Swiss card game firm, A.G. Müller, issued a reprint which is distinguished by its cleaner lines. The alternative name for the pack comes from this edition, the "1" simply being a number within the product line and "JJ" the replacement of 2 trumps by Juno and Jupiter (see below).

The face cards are not double headed and both the trumps and pip cards use additive Roman numeral indexing. The lack of modern features like vertically symmetrical face cards, corner indices, and Arabic numerals has made this deck unpopular for tarot players outside of their native communities. For example, the French-speaking Swiss (Romands) prefer using the Tarot Nouveau to play French tarot. It is still the official deck for Troccas tournaments.

Troccas players use the French-language version but refer to their cards with their Romansh (Rhæto-Romanic) nicknames.^[4] Troggu players use the German version. The names of the trump cards are as follows: