most fumbles lost by 49ers qb all-time

Alex Smith has lost the most career fumbles by a 49ers quarterback, with 19 lost.

NAMELOSTFUMGPCMPATTPCTYDSAVGYDS/GTDINTRTGTD%INT%SCKSCKY
1Alex Smith
A. Smith
19
45
80
1,290
2,177
59.3
14,280
6.6
178.5
81
63
79.1
3.7
2.9
196
1,182
2Colin Kaepernick
C. Kaepernick
15
37
69
1,011
1,692
59.8
12,271
7.3
177.8
72
30
88.9
4.3
1.8
171
1,060
3Jimmy Garoppolo
J. Garoppolo
9
28
57
1,104
1,632
67.6
13,599
8.3
238.6
82
42
99.2
5.0
2.6
115
769
4C.J. Beathard
C.J. Beathard
8
11
19
291
497
58.6
3,469
7.0
182.6
18
13
81.1
3.6
2.6
46
368
5Tim Rattay
T. Rattay
8
14
24
327
540
60.6
3,692
6.8
153.8
22
18
80.7
4.1
3.3
54
328
6Brock Purdy
B. Purdy
7
16
49
919
1,353
67.9
11,685
8.6
238.5
84
37
104.0
6.2
2.7
81
446
7J.T. O'Sullivan
J.T. O'Sullivan
6
11
9
128
220
58.2
1,678
7.6
186.4
8
11
73.6
3.6
5.0
32
197
8Shaun Hill
S. Hill
5
14
18
322
522
61.7
3,490
6.7
193.9
23
11
87.3
4.4
2.1
47
286
9Nick Mullens
N. Mullens
4
8
19
387
600
64.5
4,714
7.9
248.1
25
22
87.2
4.2
3.7
36
266
10Ken Dorsey
K. Dorsey
4
7
11
171
316
54.1
1,712
5.4
155.6
8
11
63.7
2.5
3.5
19
122
11Jeff Garcia
J. Garcia
3
9
13
225
392
57.4
2,704
6.9
208.0
18
13
80.1
4.6
3.3
21
104
12Mac Jones
M. Jones
2
4
11
201
289
69.6
2,151
7.4
195.5
13
6
97.4
4.5
2.1
16
108
13Trent Dilfer
T. Dilfer
2
8
7
113
219
51.6
1,166
5.3
166.6
7
12
55.1
3.2
5.5
27
182
14Joshua Dobbs
J. Dobbs
1
2
2
32
47
68.1
361
7.7
180.5
2
2
87.3
4.3
4.3
2
28
15Brandon Allen
B. Allen
1
2
4
17
30
56.7
199
6.6
49.8
1
2
60.3
3.3
6.7
2
2
16Sam Darnold
S. Darnold
1
3
10
28
46
60.9
297
6.5
29.7
2
1
85.1
4.3
2.2
6
40
17Brian Hoyer
B. Hoyer
1
3
6
119
205
58.0
1,245
6.1
207.5
4
4
74.1
2.0
2.0
16
112
18Blaine Gabbert
B. Gabbert
1
4
15
272
449
60.6
2,994
6.7
199.6
16
13
80.2
3.6
2.9
36
212
StatMuse has season-level data for lost fumbles going back to the 2003 season.

More 49ers Stats

Team Leaders

PASS

2,167

Purdy

Brock Purdy

RUSH

1,202

McCaffrey

Christian McCaffrey

REC

924

McCaffrey

Christian McCaffrey
Team Rankings

PPG

25.7

10th

OPP PPG

21.8

13th

RUSH YDS/G

106.9

24th

PASS YDS/G

254.0

6th

2025 Division Standings
TEAMWLTPCT
14
3
0
.824
12
5
0
.706
49ers 49ers
12
5
0
.706
3
14
0
.176
Last Game
SF 49ers

1 - 1

6

Final

41

SEA Seahawks

1 - 0

Sat 17 Jan 2026

NFL 2025 Leaders

NFL 2025 Rankings

NFL Fantasy 2025

NFL 2025 Betting

NFL 2025 Standings

AFC EastWLTPCT
14
3
0
.824
Bills Bills - w
12
5
0
.706
7
10
0
.412
Jets Jets - e
3
14
0
.176
AFC NorthWLTPCT
10
7
0
.588
8
9
0
.471
6
11
0
.353
5
12
0
.294
AFC SouthWLTPCT
13
4
0
.765
12
5
0
.706
Colts Colts - e
8
9
0
.471
3
14
0
.176
AFC WestWLTPCT
14
3
0
.824
11
6
0
.647
6
11
0
.353
3
14
0
.176
NFC EastWLTPCT
11
6
0
.647
7
9
1
.441
5
12
0
.294
4
13
0
.235
NFC NorthWLTPCT
Bears Bears - y
11
6
0
.647
9
7
1
.559
9
8
0
.529
Lions Lions - e
9
8
0
.529
NFC SouthWLTPCT
8
9
0
.471
8
9
0
.471
8
9
0
.471
6
11
0
.353
NFC WestWLTPCT
14
3
0
.824
Rams Rams - w
12
5
0
.706
49ers 49ers - w
12
5
0
.706
3
14
0
.176