The 1959 Isle of Man TT, the second round of the 1959 Grand Prix motorcycle racing season, involved races on both the Mountain Course and the Clypse Course on the Isle of Man. John Surtees won the Senior race with a time of 3:00.13.4, adding to his earlier victory in the Junior race. Tarquinio Provini won both the Lightweight and Ultra-Lightweight categories, while Walter Schneider and H.Strauss won the sidecar event.

7 Laps (264.11 Miles) Mountain Course.

Place	Rider	Number	Country	Machine	Speed	Time	Points
1	John Surtees		Britain	MV Agusta	95.38 mph	2:46.08.0	8
2	John Hartle		Britain	MV Agusta	93.65 mph	2:49.12.2	6
3	Alistair King		Britain	Norton	93.56 mph	2:49.22.6	4
4	Geoff Duke		Britain	Norton	93.10 mph	2:50.12.4	3
5	Bob Anderson		Britain	Norton	92.67 mph	2:50.59.6	2
6	Dave Chadwick		Britain	Norton	92.51 mph	2:51.17.6	1

10 Laps (107.90 miles) Clypse Course.

Place	Rider	Number	Country	Machine	Speed	Time	Points
1	Tarquinio Provini		Italy	MV Agusta	77.77 mph	1:23.15.8	8
2	Carlo Ubbiali		Italy	MV Agusta	77.76 mph	1:23.16.2	6
3	Dave Chadwick		Britain	MV Agusta	74.52 mph	1:26.52.4	4
4	Tommy Robb		Britain	GMS	73.60 mph	1:27.57.0	3
5	Horst Kassner		Germany	NSU	72.18 mph	1:29.43.0	2
6	Rudi Thalhammer		Austria	NSU	72.07 mph	1:29.49.6	1

10 Laps (107.90 miles) Clypse Course.

Place	Rider	Number	Country	Machine	Speed	Time	Points
1	Tarquinio Provini		Italy	MV Agusta	74.06 mph	1:27.52.2	8
2	Luigi Taveri		Switzerland	MZ	73.95 mph	1:27.32.6	6
3	Mike Hailwood		Britain	Ducati	72.15 mph	1:29.44.0	4
4	Horst Fügner		Germany	MZ	71.91 mph	1:30.11.6	3
5	Carlo Ubbiali		Italy	MV Agusta	71.20 mph	1:30.56.6	2
6	Naomi Taniguchi		Japan	Honda	68.29 mph	1:34.48.0	1

10 Laps (107.90 miles) Clypse Course.

Place	Rider	Number	Country	Machine	Speed	Time	Points
1	Walter Schneider/H.Strauss	3	Germany	BMW	72.69 mph	1:29.03.8	8
2	Florian Camathias/H.Cecco	9	Switzerland	BMW	71.05 mph	1:31.06.8	6
3	Fritz Scheidegger/H.Burkhardt	25	Switzerland	BMW	69.42 mph	1:33.16.2	4
4	Helmut Fath/A.Wohlgemuth	5	Germany	BMW	68.95 mph	1:33.51.0	3
5	Edgar Strub/R Mick Woolett	17	Germany	BMW	67.31 mph	1:36.12.2	2
6	Owen Greenwood/Terry Fairbrother	28	Britain	Norton	66.56 mph	1:37.15.8	1

7 Laps (274.11 Miles) Mountain Course.

Place	Rider	Number	Country	Machine	Speed	Time	Points
1	John Surtees		Britain	MV Agusta	87.94 mph	3:00.13.4	8
2	Alistair King		Britain	Norton	85.50 mph	3:05.21.0	6
3	Bob Brown		Australia	Norton	83.00 mph	3:10.56.4	4
4	Derek T.Powell		Britain	Matchless	82.87 mph	3:11.14.2	3
5	Bob McIntyre		Britain	Norton	82.34 mph	3:12.27.8	2
6	Paddy Driver		South Africa	Norton	81.34 mph	3:14.55.4	1

• Detailed race results
• Mountain Course map