Everywhere!
The Golden Rule belongs to all. Here are a few examples:
Baha’i Faith Lay not on any soul a load that you would not wish to be laid upon you, and desire not for anyone the things you would not desire for yourself. Baha’u’llah, Gleanings
Buddhism Treat not others in ways that you yourself would find hurtful. The Buddha, Udana-Varga 5.18
Christianity In everything, do to others as you would have them do to you; for this is the law and the prophets. Jesus, Matthew 7:12
Confucianism One word which sums up the basis of all good conduct … loving-kindness. Do not do to others what you do not want done to yourself. Confucius Analects 15.23
Hinduism This is the sum of duty: do not do to others what would cause pain if done to you. Mahabharata 5:1517
Islam Not one of you truly believes until you wish for others what you wish for yourself. The Prophet Muhammad, Hadith
Jainism One should treat all creatures in the world as one would like to be treated. Mahavira, Sutrakritanga
Judaism What is hateful to you, do not do to your neighbour. This is the whole Torah; all the rest is commentary. Go and learn it. Hillel, Talmud, Shabbath 31a
Native Spirituality We are as much alive as we keep the earth alive. Chief Dan George
Sikhism I am a stranger to no one; and no one is a stranger to me. Indeed, I am a friend to all. Guru Granth Sahib, p. 1299
Taoism Regard your neighbour’s gain as your own gain and your neighbour’s loss as your own loss. Lao Tzu, T’ai Shang Kan Ying P’ien, 213-218
Unitarianism We affirm and promote respect for the interdependent web of all existence of which we are a part. Unitarian principle
Zoroastrianism Do not do unto others whatever is injurious to yourself. Shayast-na-Shayast 13.29