Patrick Johnston

Patrick Johnston may refer to:


 * Patrick Johnston (Canadian politician), Canadian administrator and former politician
 * Patrick Johnston (American politician) (born 1946), former Democratic state legislator in the State of California
 * Patrick Johnston (medieval courtier), Scottish courtier and producer of plays
 * Patrick G. Johnston, Northern Irish academic; vice-chancellor of Queens University Belfast, 2014-2017
 * Sir Patrick Johnston (Scottish politician), Scottish merchant and politician