Although food is one of the basic necessities of life, food insecurity remains a major problem in Nigeria. This paper analyzes the factors influencing food security among rural households in Ogun State, Nigeria. Data were collected with multi-stage sampling procedure and analyzed with descriptive statistics and Probit regression model. The results show that mean age and household size of the respondents were 43years (std dev = 13.31) and 5 (std dev = 3.28) respectively. The mean per capita household expenditure per day was N113.57. Using two-third mean per capita expenditure as food security line, 70.1 percent of the households were food secure, while 36.7 percent were food secure with dollar per day per person food security line. Factors that contributed to food security status of the households at two-third mean per capita household expenditure and a dollar per day were dependency ratio, marital status, age, and income. It was recommended that in order to increase food security, rural dwellers should be encouraged to diversify their income sources, among others.