Residual oil in canola press-cake (CPC) and extracted oil (CO) are both sources of dietary fat for pigs. However, fat digestibility may be lower in cake as oil remains trapped in the crushed seed matrix. Dietary fat source may affect endogenous fat losses that must be determined to calculate true fat digestibility. To test these hypotheses, 9 ileal-cannulated pigs (25.4 kg BW) were fed 9 diets in a 9 × 8 Youden square. A basal diet of wheat and barley grains and canola meal was formulated. Eight test diets were prepared by mixing 10, 20, 30, and 40% CPC or 1.5, 3.0, 4.5, and 6.0% CO with basal diet, respectively, to match dietary fat content. Apparent total-tract digestibility (ATTD) and apparent ileal digestibility (AID) of acid-hydrolyzed ether extract (EE) were calculated for each diet using TiO2 as marker. True total-tract digestibility (TTTD) and true ileal digestibility (TID) of EE in CPC and CO and endogenous loss of EE were estimated by regressing apparent digested EE (g/kg of DM intake) against dietary EE intake (g/kg of DM). The ATTD and AID of EE in CPC diets were 61.5 and 78.9% and were lower (P < 0.01) than the 63.4 to 81.9% in CO diets, respectively. Apparent total-tract and ileal digested EE content in CPC and CO diets increased linearly (P < 0.01) with increasing EE intake. Endogenous loss of EE was greater (P < 0.05) for the total-tract (−23.4 g/kg of DM intake) than by the ileum (−9.4 g/kg of DM intake). Dietary fat source did not affect (P > 0.05) total-tract or ileal endogenous EE loss. The TTTD and TID of EE in CPC were 94.5 and 92.3% and were lower (P < 0.01) than 100 and 96.5% in CO, respectively. In conclusion, CPC had reduced ATTD, AID, TTTD, and TID of EE compared with CO. Dietary fat source did not affect endogenous losses of EE. The reduced fat digestibility of CPC compared with CO indicates that fat digestibility of CPC should be considered to predict its nutritional value accurately before diet formulation.