The present investigation was conducted in 36 crosses, which were developed by using nine parents to study the heterosis for yield parameters in sponge gourd. Maximum standard heterosis for fruit length was observed in SG-4 × KRCCH-2 (19.44 %), for fruit diameter in SG-6 × Swarna Prabha (-21.13 %), for average fruit weight in SG-5 × KRCCH-1 (13.37 %), for number of fruits per plant in Kulgod local × Pusa Chikni (66.04 %), for fruit yield per plant in Kulgod local × Pusa Chikni (100.74 %) and for number of seeds per fruit in SG-6 × KRCCH-1 (-42.66 %). The three best performing F1 hybrids viz., the cross Kulgod local × Pusa Chikni (100.74 %) followed by SG-5 × SG-3 (95.11 %) and Kulgod local × KRCCH-1 (70.08 %) exhibited the highest standard heterosis for total fruit yield per plant in order of merit.