The 47-year-old actress gave a eulogy for her beloved dad Dr. Anthony Kidman at St Francis Xavier Church in Lavender Bay, Sydney, as well as performing an acoustic rendition of Amazing Grace with her husband Keith Urban.
In her eulogy, Nicole explained to mourners - including Russell Crowe and his ex-wife Danielle Spencer - how her psychologist dad was always there for her, especially following her split from husband Tom Cruise in 2001.
She said: "He was the father that was on a plane, hours after I got divorced, to come and take care of me, staying with me for weeks for as long as I needed."
"He was also the father who would when I was crying always tell me 'Nicki, it's going to be OK'."
"He was the father that would come to the principal's office after I forged his signature because I was wagging. The principal would ask 'Is this your signature?' and he would say 'Yes!'"
"I'm a girl, a woman that was raised by an extraordinary man, a good man, a compassionate man, a strong man. He was a man that was always there for me, a thinker, my confidant, my friend and my protector."
Nicole and Keith's daughters, Sunday, six, and Faith, three, were also at the funeral, but Isabella, 21, and Conor, 19, her adopted kids with Tom, did not attend.
Dr. Kidman, 75, died in Singapore of an apparent heart attack while visiting his daughter Andrea, her husband and their six children, all of whom were at the funeral service.
Antonia's husband Craig Maran was a pallbearer, along with Keith, Noah star, Russell Crowe and TV presenter Peter Overton.
Keith Took to his Facebook account to inform fans of the loss and funeral of his father-in-law
