Faataua Le Ola, which means value life, said about 20 Samoans were taking their lives each year.
The NGO's executive director, Papalii Tiumalu Caroline Paul-Ah Chong, said young Samoan men between the ages of 12 and 35 were the most vulnerable.
"Men are more vulnerable. I think it stems from the macho attitude that our Samoan men have that they're invincible, that they can overcome anything," she said.
"They find it hard to reach out and ask for help and seek help."
Problems in relationships are the leading causes of suicide in Samoa, Papalii said.