Seka Rat Nadi is a Balinese gendèr wayang ensemble based in Toronto, Canada.

Rat Nadi (“Together As One”) is the name given to this ensemble (seka) by one of the greatest living exponents of gendèr wayang in Bali, I Wayan Konolan. The group comprises John Carnes, James Kippen, Annette Sanger and Albert Wong. They have studied in Bali and North America with I Wayan Konolan and with master musicians Ni Ketut Suryatini (Konolan’s daughter), I Nyoman Sudarna (Konolan's son), and I Wayan Sinti.

The gendèr wayang keyed metallophone quartet is commonly used to accompany the shadow puppet plays (wayang kulit) that re-enact stories from India's ancient Mahabharata epic. It is also used in a host of Hindu religious ceremonies including temple anniversaries, tooth filings and cremations where music is essential to ritual efficacy. The music of the gendèr wayang is generally thought to be the most difficult in Bali.