Raja yogas aka Raj Yogs are Shubha ('auspicious') yogas in jyotisha philosophy and tradition.

B. Suryanarain Rao writes that peculiar powers seem to characterise the angular positions of the planets which enable persons born under such combinations to become kings (i.e. acquire ruling powers).

All planets occupying the kendras gain exceptional strength. Mars and Saturn are natural malefic but both situated in the kendras can confer advancement in life though tending to prove evil towards the end. Saturn in Cancer (when it becomes a temporary friend of Jupiter) and Mars in Capricorn produce prominent persons but not vice versa. Saturn in Libra in a kendra from the Lagna or the Chandra-lagna causing Sasa yoga, a Panch Mahapurusha yoga, gives wealth, status, fame and also ruling power but does not give a happy life because of its square aspect on Cancer and being in the 8th from Pisces the exaltation sign for means.

The greatest yog according to Jaimini and Parashar is when Saturn is in the 10th house and Moon is in the 4th either in Cancer or Capricorn sign there arises a significant yoga which makes a king who will rule the world. The same yog if happens in 1st and 7th house will give rise to a lesser raj yog making the person the king of a kingdom.

The trikonas are as sensitive as the kendras if not more; planets in mutual trikonas become effective co-workers. The antra-dasha of the planet situated in a kendra or in a trikona from the dasha-lord generally confers auspicious results. The Sun in the 4th, a retrograde Venus in the 5th with Jupiter situated in the lagna, or Saturn in the 9th, Mars exalted, and Mercury, Venus and Jupiter combining in the 5th house give rise to powerful Raja yogas which yogas illustrate the importance and effectiveness of the trinal aspects of planets more particularly that of Jupiter.

There are some Raja yogas described by texts which simply cannot occur, e.g. Varahamihira states that if exalted Mercury occupies lagna, Venus occupies the 10th, the Moon and Jupiter join in the 7th and Saturn and Mars occupy the 5th, the person becomes a ruler, this yoga cannot occur because Mercury cannot be in a kendra from Venus, certainly not 77 degrees apart for this yoga to arise, or if the Moon, Saturn and Jupiter are in the 10th, 11th and lagna respectively, Mercury and Mars in the 2nd and Venus and the Sun in the 4th, which event cannot take place because Mercury can never be in the 3rd house counted from the Sun.

The lord of the 10th house counted from the stronger of the two, the Lagna or the Chandra-lagna, occupying a kendra or a trikona or the 2nd house vested with required strength by itself gives rise to Raja yoga (Mansagari IV Raja yoga 4). If at the time of birth the Moon is in an Upachayasthana, all benefic planets occupy their own signs and navamsas and all malefic planets are weak in strength the person will rise to be a ruler equal to Indra (Mansagari IV Raja yoga 16). Venus and Mars combining in the 2nd house with Jupiter situated in Pisces, Mercury and Saturn in Libra and the Moon occupying its debilitation sign give rise to Raja yoga, in which event the person will be generous, wealthy, proud and famous ruling a vast territory (Mansagari IV Raja yoga 33). If the Moon combines with the Sun in the first half of Sagittarius sign, Saturn vested with strength is in the lagna and Mars is exalted a mighty much venerated ruler is born (Mansagari IV Raja yoga 65–66).

The conjunction of Jupiter with either Mars or the Moon giving rise to auspicious yogas also pave the ground for Raja yoga-formation, however, Ramanuja states that in these two events the person will be fortunate and prosperous in the dashas of Mars and the Moon but Jupiter's dasha will be ordinary.