| 7-20 | TA Boult | New Zealand Under-19s v Malaysia Under-19s | Johor Cricket Academy Oval, Johor | 2007/08 |
| 5-11 | TG Southee | New Zealand Under-19s v Zimbabwe Under-19s | Johor Cricket Academy Oval, Johor | 2007/08 |
| 5-21 | MB Rowe | New Zealand Under-19s v Afghanistan Under-19s | Buffalo Park, East London | 2023/24 |
| 5-29 | HMR Richards | New Zealand Young Cricketers v Australia Under-19s | Pukekura Park, New Plymouth | 1986/87 |
| 5-30 | DJ Bartlett | New Zealand Under-19s v Uganda Under-19s | Nondescripts Cricket Club Ground, Colombo | 2005/06 |
| 5-38 | CL Cairns | New Zealand Young Cricketers v England Young Cricketers | Lord's Cricket Ground, St John's Wood | 1989 |
| 5-38 | GJ Morgan | New Zealand Under-19s v England Under-19s | County Ground, Northampton | 2008 |
| 5-55 | FJM Murray | New Zealand Under-19s v Pakistan Under-19s | ICC Cricket Academy Ground No 2, Dubai | 2015/16 |
| 4-16 | HK Bennett | New Zealand Under-19s v United States of America Under-19s | P Saravanamuttu Stadium, Colombo | 2005/06 |
| 4-18 | CL Cairns | New Zealand Young Cricketers v ICC Associates Young Cricketers | Loxton North Oval, Loxton | 1987/88 |
| 4-18 | JEC Franklin | New Zealand Under-19s v Australia Under-19s | Tyronne Fernando Stadium, Moratuwa | 1999/00 |
| 4-20 | JEC Franklin | New Zealand Under-19s v Zimbabwe Under-19s | Springbok Park, Bloemfontein | 1997/98 |
| 4-25 | CL Cairns | New Zealand Young Cricketers v Australia Under-19s | Berri Oval, Berri | 1988/89 |
| 4-25 | KDC Clarke | New Zealand Under-19s v West Indies Under-19s | Willowmoore Park Main Oval, Benoni | 2019/20 |
| 4-26 | TP Robin | New Zealand Under-19s v India Under-19s | Galle International Stadium, Galle | 1999/00 |
| 4-26 | MD Bates | New Zealand Under-19s v Zimbabwe Under-19s | Bert Sutcliffe Oval, Lincoln | 2001/02 |
| 4-26 | MR Quinn | New Zealand Under-19s v Afghanistan Under-19s | Kev Hackney Oval, Maroochydore | 2012 |
| 4-29 | MDJ Walker | New Zealand Under-19s v Australia Under-19s | Bradman Oval, Bowral | 1995/96 |
| 4-29 | TG Southee | New Zealand Under-19s v India Under-19s | Bert Sutcliffe Oval, Lincoln | 2006/07 |
| 4-29 | TG Southee | New Zealand Under-19s v India Under-19s | Kinrara Academy Oval, Kuala Lumpur | 2007/08 |
| 4-31 | HK Bennett | New Zealand Under-19s v Ireland Under-19s | R Premadasa Stadium, Colombo | 2005/06 |
| 4-31 | DL Watson | New Zealand Under-19s v Australia Under-19s | Bert Sutcliffe Oval, Lincoln | 2012/13 |
| 4-32 | KD Mills | New Zealand Under-19s v Zimbabwe Under-19s | Springbok Park, Bloemfontein | 1997/98 |
| 4-32 | R Ravindra | New Zealand Under-19s v South Africa Under-19s | Bay Oval, Mount Maunganui | 2017/18 |
| 4-35 | LJ Woodcock | New Zealand Under-19s v South Africa Under-19s | Eden Park Outer Oval, Auckland | 2000/01 |
| 4-35 | NB Beard | New Zealand Under-19s v England Under-19s | County Ground, Hove | 2008 |
| 4-36 | BR Findlay | New Zealand Under-19s v India Under-19s | Bangabandhu National Stadium, Dhaka | 2003/04 |
| 4-40 | JA Duffy | New Zealand Under-19s v Afghanistan Under-19s | Kev Hackney Oval, Maroochydore | 2012 |
| 4-41 | IS Sodhi | New Zealand Under-19s v Australia Under-19s | Endeavour Park, Townsville | 2011/12 |
| 4-43 | CL Cairns | New Zealand Young Cricketers v Australia Young Cricketers | Wentworth Oval, Wentworth | 1987/88 |
| 4-43 | CM Smith | New Zealand Under-19s v Bangladesh Under-19s | Bangabandhu National Stadium, Dhaka | 2003/04 |
| 4-46 | EW Schreuder | New Zealand Under-19s v Ireland Under-19s | Mangaung Oval, Bloemfontein | 2023/24 |
| 4-49 | KA Jamieson | New Zealand Under-19s v Sri Lanka Under-19s | Sharjah Cricket Association Stadium, Sharjah | 2013/14 |
| 4-51 | NG Smith | New Zealand Under-19s v Australia Under-19s | ICC Cricket Academy Ground No 2, Dubai | 2015/16 |
| 4-52 | LM Burtt | New Zealand Under-19s v South Africa Under-19s | Lincoln Green, Lincoln | 2001/02 |
| 4-62 | M Clarke | New Zealand Under-19s v India Under-19s | Mangaung Oval, Bloemfontein | 2023/24 |