Toby went missing after a collision on the M1 on Tuesday evening.
And he was found around the golf course - after a 3am sighting today.
A family member, who had been searching for Toby, described his finding as "a Christmas miracle".
The three car collision happened as cars were leaving Belfast just before the J2 at Stockmans Lane.
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Earlier on PSNI Facebook a spokesman said: "Police attended a Road Traffic Collision in Dunmurry, Belfast.
"Unfortunately, following the incident, a little Jack Russell dog called Toby ran from one of the vehicles.
"He was last seen at Dunmurry Golf Club heading in the direction of Erinvale.
"The family are very concerned about their dog and are desperate to be reunited with him."