The current paper elaborates the wild edible plants’ (WEPs) diversity, and associated traditional knowledge among three ethnic groups of Balochistan Province, Pakistan. The field trips were carried out in 2018-2020 employing purposive sampling techniques for respondents. We used open ended semi-structured interviews for data collection. A total of 195 interviews reported 140 plant species in 44 families and 105 genera. Family Brassicaceae (10.17%) showed maximum representation along with Asteraceae (10%), and Apiaceae (6.42%). Eight (8) used categories were determined i.e. eaten fresh (47 spp. 33.57%), as vegetable (46 spp., 32.85%), vegetable and salad (15 spp, 10.71%), salad (14 spp, 10%), beverages only (8 spp, 5.71%), and flavor (7 spp, 5%). Leaves (54 spp., 38.57%) were the most used part followed by fruits (44 spp, 31.42%), tubers (13, 9.28%), bulb (11, 7.8% species), whole plant (8, 5.7%), flowers (4, 2.8%), seeds (4, 2.8), shoots (3, 2.14) young stem (2, 1.42). Seventy five (75) species (53.57%) were cited for mutual utilization and the rest 65 (46.42%) were used differently. Pashtuns hold comparatively significant traditional knowledge and exclusively utilize 44 (31.42%) plant species. Similarly, the Pushtoons and Balochis were sharing considerable species i.e. 13 (9.28%). Jaccard index (JI) discovered that 92 plant species were reported for the first time from the province as WEPs for instance Ferula costata, F. oopoda, Ferula assa-foetida, Allium zhobicum, Asphodelus tenuifolius, and Menoicus linifolius etc. Effect of age, gender and was observed in addition to inter-cultural knowledge heterogeneity. Several geo-climatic changes and anthropogenic factors are causing the fragmentation of existing knowledge. The promotion of these WEPs as crops would underpin the food security and socioeconomic development in the region.