Title Decision In the Selection of a Private Hospital For Childbirth, the Purposes of This Research Were 1) to Examine Marketing Mix Factors Influencing the Decision In the Selection of a Private Hospital For Childbirth, 2) to Examine Process For Decision In the Selection of a Private Hospital For Childbirth, 3) to Examine the Relationship Between Marketing Mix Factors and Process For Decision In the Selection of a Private Hospital For Childbirth. the Study Was a Quantitative Research. the Population Was Women Who Gave Birth from Private Hospital In 300 Cases Using a Questionnaire. Data Was Analyzed Using Percentage, Mean, T-Test, One Way Anova, Correlation and Regression Analysis. the Results of This Study Were Most of People Are Government Officers, State Enterprise Employees Who Got 20,001-30,000 Baht a Month Answer the Questionnaire. First Right Used In Treatment Is Paying Medical Treatment Fee By Self. Influential Person to Customer Is Own and a Child. Marketing Mix Factors Influencing the Decision In the Selection of a Private Hospital For Childbirth, Treatment and Medical Care Sector Overall Mean, Were at the High Significant Level, When Considered In Separate Aspects, It Was Found That Had 2 High Aspects, Good Service from Medical Professions and Medical Professional Abilities, Medical Treatment Fee, Overall Mean Were at the Highest Level. When Considered In Separate Aspects, It Was Found That Had 2 Aspects, Medical Treatment Fee That Compared With Treatment Quality a ...