Ken Sande (N/A–N/A) is an American preacher, author, and founder of Peacemaker Ministries and Relational Wisdom 360 (RW360), known for his influential work in biblical peacemaking and relationship building within evangelical Christianity. Raised on a ranch in Montana, Sande initially trained as a mechanical engineer, earning a degree and working in medical research in California designing hemodialysis equipment, before pursuing a law degree in Montana with an intent to focus on product liability litigation. His career shifted dramatically when he felt called to Christian ministry, founding the Christian Conciliation Service of Montana in 1982, which evolved into Peacemaker Ministries. Married to Corlette, with whom he has two adult children and a grandson, he has lived in Billings, Montana, where his love for hiking and skiing complements his ministry life. Sande’s preaching career has centered on teaching Christians to resolve conflict biblically, a mission he pursued as an elder at Cornerstone Community Church in Billings and through extensive international speaking. He authored The Peacemaker (1991), a bestselling guide translated into 17 languages with over 500,000 copies sold, alongside other works like Peacemaking for Families and resources for RW360, launched in 2012 to emphasize relational wisdom over mere conflict resolution. Certified as a mediator and Emotional Intelligence Instructor, he stepped down from Peacemaker Ministries in 2012 after 30 years, leaving a legacy as a preacher whose practical, gospel-centered approach—delivered in sermons like “Redemptive Church Discipline” (Matthew 18:12-20)—has equipped countless believers to navigate disputes with grace, continuing his influence through RW360.