Going to Need More Leashes

250 Unique pets must be captured in order to earn this.

Available pets as of 5.3.0 (capturable battle pets are not included). Total amount in post: 246.

As for the Battle Pets:

• 
  
• Work your way down from Silvermoon City to STV and battle all different type of pets you see in the different zones.
• 
  
• Make sure to level up your pets during the progress!
• 
  
• Do the same in Durotar, then Outland, Northrend, Cataclysm and finally capture the pets of Pandaria.
• 
  
• In the end you'll have more achievements, such as World Pet Mauler and Big City Pet Brawler.
• 
  

Vendor/auction house

1. 
   
2. [item=44822]
3. 
   
4. [item=11023]
5. 
   
6. [item=10360]
7. 
   
8. [item=8485]
9. 
   
10. [item=54436]
11. 
    
12. [item=29958]
13. 
    
14. [item=29901]
15. 
    
16. [item=10394]
17. 
    
18. [item=29364]
19. 
    
20. [item=10361]
21. 
    
22. [item=46398]
23. 
    
24. [item=8496]
25. 
    
26. [item=10393]
27. 
    
28. [item=8486]
29. 
    
30. [item=10392]
31. 
    
32. [item=39973]
33. 
    
34. [item=29953]
35. 
    
36. [item=8500]
37. 
    
38. [item=8501]
39. 
    
40. [item=88148]
41. 
    
42. [item=29363]
43. 
    
44. [item=48120]
45. 
    
46. [item=8487]
47. 
    
48. [item=29956]
49. 
    
50. [item=29902]
51. 
    
52. [item=8495]
53. 
    
54. [item=8490]
55. 
    
56. [item=29957]
57. 
    
58. [item=8488]
59. 
    
60. [item=8497]
61. 
    
62. [item=11026]
63. 
    
64. [item=8489]
65. 
    
66. [item=29904]
67. 
    
68. [item=69239]
69. 
    
70. [item=11027]
71. 
    
72. [item=29903]
73. 
    
74. [item=46325] (Hordes - allys get from quest)
75. 
    

Quest Rewards

1. 
   
2. [item=65661]
3. 
   
4. [item=66067]
5. 
   
6. [item=65662]
7. 
   
8. [item=72042]/[item=72045]
9. 
   
10. [item=84105](What's in a Name Name? or Let Them Burn)
11. 
    
12. [item=31760]
13. 
    
14. [item=68833]
15. 
    
16. [item=66080] (Not Fireflies, Flameflies or SEVEN! YUP!)
17. 
    
18. [item=46325]
19. 
    
20. [item=73797]
21. 
    
22. [item=94210]
23. 
    
24. [item=92799]
25. 
    
26. [item=92800]
27. 
    
28. [item=92798]
29. 
    
30. [item=90173]
31. 
    
32. [item=94025]
33. 
    
34. [item=94209]
35. 
    
36. [item=94190]
37. 
    
38. [item=94208]
39. 
    
40. [item=85222]
41. 
    

Achievement Rewards

1. 
   
2. [item=71387]
3. 
   
4. [item=54810]
5. 
   
6. [item=63138]
7. 
   
8. [item=44738]
9. 
   
10. [item=71033]
11. 
    
12. [item=44841]
13. 
    
14. [item=71140]
15. 
    
16. [item=60869]
17. 
    
18. [item=49912]
19. 
    
20. [item=40653]
21. 
    
22. [item=85513]
23. 
    
24. [item=88147]
25. 
    
26. [item=85578]
27. 
    
28. [item=86562]
29. 
    

Professions

1. 
   
2. [item=60847]
3. 
   
4. [item=89368]
5. 
   
6. [item=35350]
7. 
   
8. [item=64372]
9. 
   
10. [item=60216]
11. 
    
12. [item=67282]
13. 
    
14. [item=67274]
15. 
    
16. [item=60955]
17. 
    
18. [item=43698]
19. 
    
20. [item=67275]
21. 
    
22. [item=33818]
23. 
    
24. [item=59597]
25. 
    
26. [item=69821]
27. 
    
28. [item=35349]
29. 
    
30. [item=44983]
31. 
    
32. [item=33816]
33. 
    
34. [item=69824]
35. 
    
36. [item=15996]
37. 
    
38. [item=11826]
39. 
    
40. [item=27445]
41. 
    
42. [item=11825]
43. 
    
44. [item=21277]
45. 
    
46. [item=89367]
47. 
    

Events

1. 
   
2. [item=46545]
3. 
   
4. [item=46544]
5. 
   
6. [item=32616]
7. 
   
8. [item=21301]
9. 
   
10. [item=53641]
11. 
    
12. [item=19450]
13. 
    
14. [item=69648]
15. 
    
16. [item=23007]
17. 
    
18. [item=22235]
19. 
    
20. [item=32622]
21. 
    
22. [item=74610] / [item=74611]
23. 
    
24. [item=46707]
25. 
    
26. [item=44810]
27. 
    
28. [item=66073]
29. 
    
30. [item=23002]
31. 
    
32. [item=23083]
33. 
    
34. [item=72153]
35. 
    
36. [item=44794]
37. 
    
38. [item=21309]
39. 
    
40. [item=50446]
41. 
    
42. [item=23015]
43. 
    
44. [item=32617]
45. 
    
46. [item=21308]
47. 
    
48. [item=21305]
49. 
    
50. [item=21301]
51. 
    

Reputation/Currency

1. 
   
2. [item=63398]
3. 
   
4. [item=39898]
5. 
   
6. [item=70160]
7. 
   
8. [item=65364]
9. 
   
10. [item=65362]
11. 
    
12. [item=70140]
13. 
    
14. [item=38628]
15. 
    
16. [item=44723]
17. 
    
18. [item=44721]
19. 
    
20. [item=85222]
21. 
    
22. [item=63355]
23. 
    
24. [item=34955]
25. 
    
26. [item=39896]
27. 
    
28. [item=85447]
29. 
    
30. [item=34478]
31. 
    
32. [item=39899]
33. 
    

Darkmoon Faire

1. 
   
2. [item=73762]
3. 
   
4. [item=74981]
5. 
   
6. [item=73764]
7. 
   
8. [item=73903]
9. 
   
10. [item=73765]
11. 
    
12. [item=73905]
13. 
    
14. [item=80008]
15. 
    
16. [item=91003]
17. 
    
18. [item=73953]
19. 
    
20. [item=91040]
21. 
    

Argent Tournament

1. 
   
2. [item=44984]
3. 
   
4. [item=44998]
5. 
   
6. [item=44970]
7. 
   
8. [item=44973]
9. 
   
10. [item=44974]
11. 
    
12. [item=44982]
13. 
    
14. [item=45002]
15. 
    
16. [item=44980]
17. 
    
18. [item=45606]
19. 
    
20. [item=46820]
21. 
    
22. [item=44965]
23. 
    
24. [item=44971]
25. 
    
26. [item=44973]
27. 
    
28. [item=45022]
29. 
    

Drops

1. 
   
2. [item=93040] (AQ)
3. 
   
4. [item=93032]
5. 
   
6. [item=93034]
7. 
   
8. [item=93030]
9. 
   
10. [item=86563]
11. 
    
12. [item=8494] STV)
13. 
    
14. [item=93037]
15. 
    
16. [item=93035]
17. 
    
18. [item=64403]
19. 
    
20. [item=33993] Zul'aman drop to use on the Forest Frogs there
21. 
    
22. [item=35504]
23. 
    
24. [item=68673]
25. 
    
26. [item=34535] (Winterspring)
27. 
    
28. [item=8491] (Hillsbrad Foothills)
29. 
    
30. [item=8499] (Wetlands)
31. 
    
32. [item=10822] (Whelplings in Badlands and Duskwallow Marsh)
33. 
    
34. [item=48112] ([object=202080])
35. 
    
36. [item=48114] ([npc=3636] / [npc=3637])
37. 
    
38. [item=20769] (World drop)
39. 
    
40. [item=8498]
41. 
    
42. [item=29960]
43. 
    
44. [item=8492]
45. 
    
46. [item=48116]
47. 
    
48. [item=48118] ([object=202081])
49. 
    
50. [item=66076] (Eastern Plaguelands)
51. 
    
52. [item=48122] ([object=202082])
53. 
    
54. [item=48124] ([object=202083])
55. 
    
56. [item=48126] (STV)
57. 
    
58. [item=64494]
59. 
    
60. [item=12264]
61. 
    
62. [item=94835]
63. 
    
64. [item=97961]
65. 
    
66. [item=94125]
67. 
    
68. [item=97551]
69. 
    
70. [item=97557]
71. 
    
72. [item=11474] (Feralas)
73. 
    
74. [item=89587] ([item=89125])
75. 
    
76. [item=97959]
77. 
    
78. [item=97960]
79. 
    
80. [item=97550]
81. 
    
82. [item=97556]
83. 
    
84. [item=97961]
85. 
    
86. [item=97554]
87. 
    
88. [item=86564]
89. 
    
90. [item=97553]
91. 
    
92. [item=94595]
93. 
    
94. [item=97552]
95. 
    
96. [item=97549]
97. 
    
98. [item=97555]
99. 
    
100. [item=94152]
101. 
     
102. [item=94574]
103. 
     
104. [item=95424]
105. 
     

Promotion

1. 
   
2. [item=49646]
3. 
   
4. [item=39286]
5. 
   
6. [item=90177]
7. 
   
8. [item=62540]
9. 
   
10. [item=13584]
11. 
    
12. [item=56806]
13. 
    
14. [item=13583]
15. 
    
16. [item=13582]
17. 
    
18. [item=76062]
19. 
    

Trading Card Game

1. 
   
2. [item=32588]
3. 
   
4. [item=38050]
5. 
   
6. [item=34493]
7. 
   
8. [item=23713]
9. 
   
10. [item=68840]
11. 
    
12. [item=67128]
13. 
    
14. [item=68841]
15. 
    
16. [item=34492]
17. 
    
18. [item=49343]
19. 
    
20. [item=49287]
21. 
    
22. [item=72153]
23. 
    
24. [item=79744]
25. 
    
26. [item=71624]
27. 
    
28. [item=72134]
29. 
    
    

Pet Store

1. 
   
2. [item=70099]
3. 
   
4. [item=49662]
5. 
   
6. [item=49693]
7. 
   
8. [item=92707]
9. 
   
10. [item=68385]
11. 
    
12. [item=54847]
13. 
    
14. [item=68619]
15. 
    
16. [item=49665]
17. 
    
18. [item=49663]
19. 
    
20. [item=72068]
21. 
    
22. [item=78916]
23. 
    
24. [item=98550]
25. 
    

Not capture, but collect. You can acquire pets in any way including Blizz store.