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I report on a large-scale search for the orbital periods (P) of most knownnova systems, by looking for significant, coherent, and stable opticalphotometric modulation in two or more independent light curves taken mostlyfrom the large surveys of TESS, Kepler, AAVSO, SMARTS, OGLE, ASAS, and ZTF. Ihave discovered 31 new orbital periods. Further, I have measured new periodsfor 18 novae with evolved companions, to 30 per cent accuracy, as based ontheir spectral energy distribution. Also, I have confirmed, improved, andrejected prior claims for P in 46 novae. (As part of this effort, I recognizethat 5 novae display 1--3 coherent, significant, and transient periodicities0.12--4.1 days, with these being mysterious as not being the orbital, spin, orsuperhump periods.) In all, I have compiled a comprehensive list of 156reliable P values for novae. The histogram of nova periods shows a minimum P at0.059 hours (85 minutes), and a Period Gap from 0.071--0.111 days (1.70--2.66hours). The upper edge of the Period Gap is significantly different betweennovae (0.111 days), nova-like systems (0.131 days), and dwarf novae (0.141days). A further issue from the histogram is that 31 per cent of nova systemshave evolved companions, for which there has been no models or understandingfor their current state or evolution. For the novae with red giant companions,15-out-of-20 are in the bulge population, despite novae with main-sequence andsubgiant companions having bulge fractions near 0.11--0.32.

Comprehensive Listing of 156 Reliable Orbital Periods for Novae, Including 49 New Periods