Due to declining employment and the limited availability of basic agricultural production resources, expanding investment in agriculture has become one of the key policy and executive approaches adopted by countries around the world. In the present study, using a descriptive–analytical approach and statistics from 2010–2023, agricultural investment indicators across different regions of the world and selected countries are comparatively examined. Asia, accounting for 55% of global agricultural investment and an annual average of 296 billion dollars, has been the leading continent in agricultural investment. The level of agricultural investment in Iran (approximately 4 billion dollars annually) is not compatible with its position within the national economy. The indicator “share of agricultural investment in total investment” is higher in developing countries compared to developed ones. The annual average of this indicator in Iran (3.8%) exceeds both the global average (2.8%) and that of all regions. Despite the high global ratio of investment to agricultural value added, this ratio in Iran is less than one-tenth. The average value of the “Agricultural Investment Orientation Index” in developed regions is close to or greater than one. This index in Iran (0.39) is lower than its global value (0.65), as well as that of Asia (0.42) and Africa (0.48). Considering the unfavorable status of agricultural investment indicators in Iran, it is recommended that—alongside improving the terms of trade in Iran’s economy, reforming the existing structure of the money market, and establishing an appropriate organizational structure within the Ministry of Agriculture (an Agricultural Investment Organization)—the development of agricultural investment in Iran be adopted as a national program by the government.